From ab79c64b3ef09cb67b32371eadca6fc108686bb4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=BCseyin=20Alav?=
 <73330164+hsynalv@users.noreply.github.com>
Date: Tue, 22 Nov 2022 20:08:51 +0300
Subject: [PATCH 1/2] day 9 translated

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 .../09_day_starter/scripts/main.js            |    2 +
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+<div align="center">
+  <h1> 30 Günde Javascript: Yüksek Dereceden -High Order- Fonksiyonlar</h1>
+  <a class="header-badge" target="_blank" href="https://www.linkedin.com/in/asabeneh/">
+  <img src="https://img.shields.io/badge/style--5eba00.svg?label=LinkedIn&logo=linkedin&style=social">
+  </a>
+  <a class="header-badge" target="_blank" href="https://twitter.com/Asabeneh">
+  <img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/asabeneh?style=social">
+  </a>
+
+<sub>Author:
+  <a href="https://www.linkedin.com/in/asabeneh/" target="_blank">Asabeneh Yetayeh</a><br>
+<sub>Çevirmen:
+  <a href="https://github.com/hsynalv" target="_blank">Hasan Hüseyin Alav</a><br>
+  <small> Kasım 2022</small>
+  </sub>
+
+</div>
+
+[<< Day 8](../08_Day_Objects/08_day_objects.md) | [Day 10 >>](../10_Day_Sets_and_Maps/10_day_Sets_and_Maps.md)
+
+![Day 9](/images/banners/day_1_9.png)
+
+- [Day 9](#day-9)
+	- [Yüksek Dereceden Fonksiyonlar](#higher-order-function)
+		- [Callback](#callback)
+		- [Returning function](#returning-function)
+		- [Setting time](#setting-time)
+			- [Setting Interval using a setInterval function](#setinterval-fonksiyonu-ile-süre-ayarlama)
+			- [Setting a time using a setTimeout](#settimeout-ile-zaman-ayarlama)
+	- [Functional Programming- Fonksiyonel Programlama](#functional-programming)
+		- [forEach](#foreach)
+		- [map](#map)
+		- [filter](#filter)
+		- [reduce](#reduce)
+		- [every](#every)
+		- [find](#find)
+		- [findIndex](#findindex)
+		- [some](#some)
+		- [sort](#sort)
+			- [Sorting string values](#sorting-string-values)
+			- [Sorting Numeric values](#sorting-numeric-values)
+			- [Sorting Object Arrays](#sorting-object-arrays)
+	- [💻 Exercises](#-exercises)
+		- [Exercises: Level 1](#exercises-level-1)
+		- [Exercises: Level 2](#exercises-level-2)
+		- [Exercises: Level 3](#exercises-level-3)
+
+# Day 9
+
+## Higher Order Function
+
+Yüksek dereceden (high order) fonksiyonlar, parametre olarak başka bir fonksiyonu içerisine alan veya bir başka fonksiyonu değer olarak döndürebilen fonksiyonlardır.
+
+Bir fonksiyon parametre olarak geçilebiliyorsa bu fonksiyona ise **callback** fonksiyon denir.
+
+### Callback
+
+Callback fonksiyon yukarıda da söylediğimiz gibi bir başka fonksiyona parametre olarak verilen fonksiyonlardır.
+
+```js
+// callback fonksiyonun adını istediğimiz şekilde verebiliriz.
+const callback = (n) => {
+  return n ** 2
+}
+​
+// bir başka fonksiyonu callback olarak alan fonksiyon
+function cube(callback, n) {
+  return callback(n) * n
+}
+​
+console.log(cube(callback, 3))
+```
+
+### Returning function
+
+Yüksek dereceden fonksiyonlar bir fonksiyonu değer olarak geri döndürebilir.
+​
+```js
+// Bir fonksiyonun başka bir fonksiyonu geri döndürme örneği.
+const higherOrder = n => {
+  const doSomething = m => {
+    const doWhatEver = t => {
+      return 2 * n + 3 * m + t
+    }
+    return doWhatEver
+  }
+  return doSomething
+}
+console.log(higherOrder(2)(3)(10))
+```
+
+Callback fonksiyonunu nasıl kullandığımızı görelim. Örneğin _foreach_ metodu callback kullanan metotlarından biridir.
+
+```js
+const numbers = [1, 2, 3, 4, 5]
+const sumArray = arr => {
+  let sum = 0
+  const callback = function(element) {
+    sum += element
+  }
+  arr.forEach(callback)
+  return sum
+
+}
+console.log(sumArray(numbers))
+```
+
+```sh
+15
+```
+
+Yukarıdaki örnek aşağıdaki gibi basitleştirilebilir::
+
+```js
+const numbers = [1, 2, 3, 4]
+​
+const sumArray = arr => {
+  let sum = 0
+  arr.forEach(function(element) {
+    sum += element
+  })
+  return sum
+
+}
+console.log(sumArray(numbers))
+```
+
+```sh
+15
+```
+
+### Setting time
+
+JavaScript'te bazı fonksiyonları belirli bir zaman aralığında yürütebiliriz veya bazı fonksiyonları yürütmek için belirli bir süre planlama (bekleme) yapabiliriz.
+
+- setInterval
+- setTimeout
+
+#### **setInterval** fonksiyonu ile süre ayarlama
+
+JavaScript'te, belirli bir zaman aralığında sürekli olarak istediğimiz şeyi yapmak için **SetInterval** fonksiyonunu kullanırız. SetInterval, genel olarak bir callback fonksiyonu ve ikinci olarak, belirlemek istediğimiz süreyi parametre alararak kullanılır. 
+
+
+```js
+// syntax
+var duration = 10
+function callback() {
+  // code goes here
+}
+setInterval(callback, duration)
+```
+
+```js
+function sayHello() {
+  console.log('Hello')
+}
+setInterval(sayHello, 1000) // saniyede 1 Hello yazdırır, 1000ms = 1s
+```
+
+#### **setTimeout** ile zaman ayarlama
+
+In JavaScript, we use setTimeout higher order function to execute some action at some time in the future. The setTimeout global method take a callback function and a duration as a parameter. The duration is in milliseconds and the callback wait for that amount of time.
+
+Javascript'te ileriye dönük çalışacak fonksiyonlar planlayabiliriz. Tam da bu iş için **setTimeOut** metodu imdadımıza koşuyor. setTimeOut fonksiyonu da setInterval fonksiyonuna benzer şekilde bir callback fonksiyon ve ms cinsinden bir süre değerini parametre olarak alır.
+
+```js
+// syntax
+function callback() {
+  // code goes here
+}
+setTimeout(callback, duration) 
+```
+
+```js
+function sayHello() {
+  console.log('Hello')
+}
+setTimeout(sayHello, 2000) //2 saniye bekledikten sonra "Hello" yazdıracak
+```
+
+## Functional Programming - Fonksiyonel Programalama
+
+JavaScript'in en son sürümü, normal döngü yazmak yerine karmaşık sorunları çözmemize yardımcı olabilecek birçok yerleşik yöntem sunmuştur.Göreceğimiz tüm metotlar callback fonksiyonu ile birlikte kullanılabilir. Bu bölümde, _forEach_, _map_, _filter_, _reduce_, _find_, _every_, _some_, and _sort_ metodlarını göreceğiz
+
+### forEach
+
+_forEach_: Bir dizi elemanlarını sırasıyla gezer. "element", "index" ve dizinin kendisi ile callback fonksiyonunu parametre olarak alabilir. "index" ve dizinin kendisi isteğe bağlı olarak parametre olarak verilmeyebilir.
+ 
+```js
+arr.forEach(function (element, index, arr) {
+  console.log(index, element, arr)
+})
+// Yukarıdaki kod arrow function kullanılarak yazılabilir.
+arr.forEach((element, index, arr) => {
+  console.log(index, element, arr)
+})
+// Daha basite indirgemek istersek
+arr.forEach((element, index, arr) => console.log(index, element, arr))
+```
+
+```js
+let sum = 0;
+const numbers = [1, 2, 3, 4, 5];
+numbers.forEach(num => console.log(num))
+console.log(sum)
+```
+
+```sh
+1
+2
+3
+4
+5
+```
+
+```js
+let sum = 0;
+const numbers = [1, 2, 3, 4, 5];
+numbers.forEach(num => sum += num)
+
+console.log(sum)
+```
+
+```sh
+15
+```
+
+```js
+const countries = ['Finland', 'Denmark', 'Sweden', 'Norway', 'Iceland']
+countries.forEach((element) => console.log(element.toUpperCase()))
+```
+
+```sh
+FINLAND
+DENMARK
+SWEDEN
+NORWAY
+ICELAND
+```
+
+### map
+
+_map_:Bir dizi elemanını yinelemek ve dizi öğelerini değiştirmek. callback fonksiyonla birlikte "elements", "index" yeni bir diziyi parametre olarak alabilir.
+
+```js
+const modifiedArray = arr.map(function (element, index, arr) {
+  return element
+})
+```
+
+```js
+/*Arrow function ve explicit return
+const modifiedArray = arr.map((element,index) => element);
+*/
+//Example
+const numbers = [1, 2, 3, 4, 5]
+const numbersSquare = numbers.map((num) => num * num)
+
+console.log(numbersSquare)
+```
+
+```sh
+[1, 4, 9, 16, 25]
+```
+
+```js
+const names = ['Asabeneh', 'Mathias', 'Elias', 'Brook']
+const namesToUpperCase = names.map((name) => name.toUpperCase())
+console.log(namesToUpperCase)
+```
+
+```sh
+['ASABENEH', 'MATHIAS', 'ELIAS', 'BROOK']
+```
+
+```js
+const countries = [
+  'Albania',
+  'Bolivia',
+  'Canada',
+  'Denmark',
+  'Ethiopia',
+  'Finland',
+  'Germany',
+  'Hungary',
+  'Ireland',
+  'Japan',
+  'Kenya',
+]
+const countriesToUpperCase = countries.map((country) => country.toUpperCase())
+console.log(countriesToUpperCase)
+
+/*
+// Arrow function
+const countriesToUpperCase = countries.map((country) => {
+  return country.toUpperCase();
+})
+//Explicit return arrow function
+const countriesToUpperCase = countries.map(country => country.toUpperCase());
+*/
+```
+
+```sh
+['ALBANIA', 'BOLIVIA', 'CANADA', 'DENMARK', 'ETHIOPIA', 'FINLAND', 'GERMANY', 'HUNGARY', 'IRELAND', 'JAPAN', 'KENYA']
+```
+
+```js
+const countriesFirstThreeLetters = countries.map((country) =>
+  country.toUpperCase().slice(0, 3)
+)
+```
+
+```sh
+ ["ALB", "BOL", "CAN", "DEN", "ETH", "FIN", "GER", "HUN", "IRE", "JAP", "KEN"]
+```
+
+### filter
+
+_Filter_: Dizi içerisinden istediğimiz koşullara uyan elemanları filtreleyerek geri döndürür
+
+```js
+//Ülkeler "land" ifadesi içersin
+const countriesContainingLand = countries.filter((country) =>
+  country.includes('land')
+)
+console.log(countriesContainingLand)
+```
+
+```sh
+['Finland', 'Ireland']
+```
+
+```js
+const countriesEndsByia = countries.filter((country) => country.endsWith('ia'))
+console.log(countriesEndsByia)
+```
+
+```sh
+['Albania', 'Bolivia','Ethiopia']
+```
+
+```js
+const countriesHaveFiveLetters = countries.filter(
+  (country) => country.length === 5
+)
+console.log(countriesHaveFiveLetters)
+```
+
+```sh
+['Japan', 'Kenya']
+```
+
+```js
+const scores = [
+  { name: 'Asabeneh', score: 95 },
+   { name: 'Lidiya', score: 98 },
+  { name: 'Mathias', score: 80 },
+  { name: 'Elias', score: 50 },
+  { name: 'Martha', score: 85 },
+  { name: 'John', score: 100 },
+]
+
+const scoresGreaterEighty = scores.filter((score) => score.score > 80)
+console.log(scoresGreaterEighty)
+```
+
+```sh
+[{name: 'Asabeneh', score: 95}, { name: 'Lidiya', score: 98 },{name: 'Martha', score: 85},{name: 'John', score: 100}]
+```
+
+### reduce
+
+_reduce_: Reduce fonksiyonu bir callback fonksiyonu gerektirir. Dizinin her değeri için bir işlev yürütür ve sonunda diziyi tek bir değere düşürür.
+Metodun dönüş değeri ilk parametresi olan accumulator parametresinde saklanır.
+
+```js
+arr.reduce((acc, cur) => {
+  // bir değer döndürmeden önce bazı işlevler buraya kodlanır
+ return 
+}, initialValue)
+```
+
+```js
+const numbers = [1, 2, 3, 4, 5]
+const sum = numbers.reduce((acc, cur) => acc + cur, 0)
+
+console.log(sum)
+```
+
+```js
+15
+```
+
+### every
+
+_every_:  Tüm elemanların tek bir açıdan benzer olup olmadığını kontrol edin. Booelan türünde geri dönüş yapar
+
+```js
+const names = ['Asabeneh', 'Mathias', 'Elias', 'Brook']
+const areAllStr = names.every((name) => typeof name === 'string') // hepsi string türünde mi?
+
+console.log(areAllStr)
+```
+
+```sh
+true
+```
+
+```js
+const bools = [true, true, true, true]
+const areAllTrue = bools.every((b) => b === true) // hepsi true mu? 
+
+console.log(areAllTrue) // true
+```
+
+```sh
+true
+
+```
+
+### find
+
+_find_: İstenilen koşulu karşılayan ilk elemanı geri döndürür.
+
+```js
+const ages = [24, 22, 25, 32, 35, 18]
+const age = ages.find((age) => age < 20)
+
+console.log(age)
+```
+
+```js
+18
+```
+
+```js
+const names = ['Asabeneh', 'Mathias', 'Elias', 'Brook']
+const result = names.find((name) => name.length > 7)
+console.log(result)
+```
+
+```sh
+Asabeneh
+```
+
+```js
+const scores = [
+  { name: 'Asabeneh', score: 95 },
+  { name: 'Mathias', score: 80 },
+  { name: 'Elias', score: 50 },
+  { name: 'Martha', score: 85 },
+  { name: 'John', score: 100 },
+]
+
+const score = scores.find((user) => user.score > 80)
+console.log(score)
+```
+
+```sh
+{ name: "Asabeneh", score: 95 }
+```
+
+### findIndex
+
+_findIndex_: koşulu karşılayan ilk elemanın index değerini döndürür.
+
+```js
+const names = ['Asabeneh', 'Mathias', 'Elias', 'Brook']
+const ages = [24, 22, 25, 32, 35, 18]
+
+const result = names.findIndex((name) => name.length > 7)
+console.log(result) // 0
+
+const age = ages.findIndex((age) => age < 20)
+console.log(age) // 5
+```
+
+### some
+
+_some_: Bazı elemanların tek bir açıdan benzer olup olmadığını kontrol edin. Boolean türünde geri dönüş yapar.
+
+```js
+const names = ['Asabeneh', 'Mathias', 'Elias', 'Brook']
+const bools = [true, true, true, true]
+
+const areSomeTrue = bools.some((b) =>  b === true)
+
+console.log(areSomeTrue) //true
+```
+
+```js
+const areAllStr = names.some((name) => typeof name === 'number') // Are all strings ?
+console.log(areAllStr) // false
+```
+
+### sort
+
+_sort_: sort fonksiyonu, bir diziyi, öğelerini dizelere dönüştürerek ve bu dizeleri Unicode kod karakterleri sırasına göre karşılaştırarak (diziyi alfabetik olarak sıralar) sıralamanıza olanak tanır. Yeni bir dizi oluşturmadan eldeki olan diziyi düzenler
+
+#### String değerleri sıralama
+
+```js
+const products = ['Milk', 'Coffee', 'Sugar', 'Honey', 'Apple', 'Carrot']
+console.log(products.sort()) // ['Apple', 'Carrot', 'Coffee', 'Honey', 'Milk', 'Sugar']
+//Now the original products array  is also sorted
+```
+
+#### Sayısal değerleri sıralama
+
+Sayıları sıralamak malesef o kadar basit değil. Sıralama yöntemini doğrudan bir sayı dizisine uygularsak, beklenmedik bir sonuç göreceğiz:
+
+```js
+const numbers = [9.81, 3.14, 100, 37]
+
+console.log(numbers.sort()) //[100, 3.14, 37, 9.81]
+```
+ Sayısal değerleri artan veya azalan düzende sıralamak için, sıralama kriterini belirleyen bir fonksiyon kullanmamız gerekir. Sıralama yöntemi neyse ki negatif, sıfır ve pozitif değerleri doğru sırada sıralayabilir. **Sort()**  methodu iki değeri karşılaştırdığında, değerleri karşılaştırma fonksiyonuna gönderir ve döndürülen değere göre sıralar.
+ 
+ - Sonuç negatifse; a, b'den önce sıralanır
+ - Sonuç pozitifse; a, b'den sonra sıralanır
+ - Sonuç 0 ise; hiçbir şey değişmez
+
+ Tek ihtiyacımız olan ise sort() metodu içinde karşılaştırma fonksiyonu kullanmak.
+
+```js
+numbers.sort(function (a, b) {
+  return a - b
+})
+
+console.log(numbers) // [3.14, 9.81, 37, 100]
+
+numbers.sort(function (a, b) {
+  return b - a
+})
+console.log(numbers) //[100, 37, 9.81, 3.14]
+```
+
+#### Array nesnelerini sıralamak
+
+Bir dizideki nesneleri sıraladığımız zaman karşılaştırmak için key objesini kullanırız. Aşağıdaki örneğe bakalım.
+
+```js
+objArr.sort(function (a, b) {
+  if (a.key < b.key) return -1
+  if (a.key > b.key) return 1
+  return 0
+})
+
+// or
+
+objArr.sort(function (a, b) {
+  if (a['key'] < b['key']) return -1
+  if (a['key'] > b['key']) return 1
+  return 0
+})
+
+const users = [
+  { name: 'Asabeneh', age: 150 },
+  { name: 'Brook', age: 50 },
+  { name: 'Eyob', age: 100 },
+  { name: 'Elias', age: 22 },
+]
+users.sort((a, b) => {
+  if (a.age < b.age) return -1
+  if (a.age > b.age) return 1
+  return 0
+})
+console.log(users) // sorted ascending
+// [{…}, {…}, {…}, {…}]
+```
+
+🌕 Çok iyi gidiyorsunuz. Asla vazgeçmeyin, çünkü harika şeyler zaman alır. 9. Günü tamamladın ve mükemmelliğe giden yolda 9 adım attınız. Şimdi beyniniz ve kasınız için egzersiz yapın.
+
+## 💻 Exercises
+
+### Exercises: Level 1
+
+```js
+const countries = ['Finland', 'Sweden', 'Denmark', 'Norway', 'IceLand']
+const names = ['Asabeneh', 'Mathias', 'Elias', 'Brook']
+const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+const products = [
+  { product: 'banana', price: 3 },
+  { product: 'mango', price: 6 },
+  { product: 'potato', price: ' ' },
+  { product: 'avocado', price: 8 },
+  { product: 'coffee', price: 10 },
+  { product: 'tea', price: '' },
+]
+```
+
+1. Aralarındaki farkı açıklayın: **_forEach, map, filter, and reduce_**.
+2. Define a callback function before you use it in forEach, map, filter or reduce.
+3. Use **_forEach_** to console.log each country in the countries array.
+4. Use **_forEach_** to console.log each name in the names array.
+5. Use **_forEach_** to console.log each number in the numbers array.
+6. Use **_map_** to create a new array by changing each country to uppercase in the countries array.
+7. Use **_map_** to create an array of countries length from countries array.
+8. Use **_map_** to create a new array by changing each number to square in the numbers array
+9. Use **_map_** to change to each name to uppercase in the names array
+10. Use **_map_** to map the products array to its corresponding prices.
+11. Use **_filter_** to filter out countries containing **_land_**.
+12. Use **_filter_** to filter out countries having six character.
+13. Use **_filter_** to filter out countries containing six letters and more in the country array.
+14. Use **_filter_** to filter out country start with 'E';
+15. Use **_filter_** to filter out only prices with values.
+16. Declare a function called getStringLists which takes an array as a parameter and then returns an array only with string items.
+17. Use **_reduce_** to sum all the numbers in the numbers array.
+18. Use **_reduce_** to concatenate all the countries and to produce this sentence: **_Estonia, Finland, Sweden, Denmark, Norway, and IceLand are north European countries_**
+19. Explain the difference between **_some_** and **_every_**
+20. Use **_some_** to check if some names' length greater than seven in names array
+21. Use **_every_** to check if all the countries contain the word land
+22. Explain the difference between **_find_** and **_findIndex_**.
+23. Use **_find_** to find the first country containing only six letters in the countries array
+24. Use **_findIndex_** to find the position of the first country containing only six letters in the countries array
+25. Use **_findIndex_** to find the position of **_Norway_** if it doesn't exist in the array you will get -1.
+26. Use **_findIndex_** to find the position of **_Russia_** if it doesn't exist in the array you will get -1.
+
+### Exercises: Level 2
+
+1. Find the total price of products by chaining two or more array iterators(eg. arr.map(callback).filter(callback).reduce(callback))
+1. Find the sum of price of products using only reduce reduce(callback))
+1. Declare a function called **_categorizeCountries_** which returns an array of countries which have some common pattern(you find the countries array in this repository as countries.js(eg 'land', 'ia', 'island','stan')).
+1. Create a function which return an array of objects, which is the letter and the number of times the letter use to start with a name of a country.
+1. Declare a **_getFirstTenCountries_** function and return an array of ten countries. Use different functional programming to work on the countries.js array
+1. Declare a **_getLastTenCountries_** function which which returns the last ten countries in the countries array.
+1. Find out which _letter_ is used many _times_ as initial for a country name from the countries array (eg. Finland, Fiji, France etc)
+
+### Exercises: Level 3
+
+1. Use the countries information, in the data folder. Sort countries by name, by capital, by population
+1. \*\*\* Find the 10 most spoken languages:
+
+   ````js
+   // Your output should look like this
+   console.log(mostSpokenLanguages(countries, 10))
+   [
+   {country: 'English',count:91},
+   {country: 'French',count:45},
+   {country: 'Arabic',count:25},
+   {country: 'Spanish',count:24},
+   {country:'Russian',count:9},
+   {country:'Portuguese', count:9},
+   {country:'Dutch',count:8},
+   {country:'German',count:7},
+   {country:'Chinese',count:5},
+   {country:'Swahili',count:4}
+   ]
+
+   // Your output should look like this
+   console.log(mostSpokenLanguages(countries, 3))
+   [
+   {country: 'English',count: 91},
+   {country: 'French',count: 45},
+   {country: 'Arabic',count: 25},
+   ]```
+
+   ````
+
+2. \*\*\* Use countries_data.js file create a function which create the ten most populated countries
+
+   ````js
+   console.log(mostPopulatedCountries(countries, 10))
+
+   [
+   {country: 'China', population: 1377422166},
+   {country: 'India', population: 1295210000},
+   {country: 'United States of America', population: 323947000},
+   {country: 'Indonesia', population: 258705000},
+   {country: 'Brazil', population: 206135893},
+   {country: 'Pakistan', population: 194125062},
+   {country: 'Nigeria', population: 186988000},
+   {country: 'Bangladesh', population: 161006790},
+   {country: 'Russian Federation', population: 146599183},
+   {country: 'Japan', population: 126960000}
+   ]
+
+   console.log(mostPopulatedCountries(countries, 3))
+   [
+   {country: 'China', population: 1377422166},
+   {country: 'India', population: 1295210000},
+   {country: 'United States of America', population: 323947000}
+   ]
+   ```
+
+   ````
+
+3. \*\*\* Try to develop a program which calculate measure of central tendency of a sample(mean, median, mode) and measure of variability(range, variance, standard deviation). In addition to those measures find the min, max, count, percentile, and frequency distribution of the sample. You can create an object called statistics and create all the functions which do statistical calculations as method for the statistics object. Check the output below.
+
+   ```js
+   const ages = [31, 26, 34, 37, 27, 26, 32, 32, 26, 27, 27, 24, 32, 33, 27, 25, 26, 38, 37, 31, 34, 24, 33, 29, 26]
+
+   console.log('Count:', statistics.count()) // 25
+   console.log('Sum: ', statistics.sum()) // 744
+   console.log('Min: ', statistics.min()) // 24
+   console.log('Max: ', statistics.max()) // 38
+   console.log('Range: ', statistics.range() // 14
+   console.log('Mean: ', statistics.mean()) // 30
+   console.log('Median: ',statistics.median()) // 29
+   console.log('Mode: ', statistics.mode()) // {'mode': 26, 'count': 5}
+   console.log('Variance: ',statistics.var()) // 17.5
+   console.log('Standard Deviation: ', statistics.std()) // 4.2
+   console.log('Variance: ',statistics.var()) // 17.5
+   console.log('Frequency Distribution: ',statistics.freqDist()) # [(20.0, 26), (16.0, 27), (12.0, 32), (8.0, 37), (8.0, 34), (8.0, 33), (8.0, 31), (8.0, 24), (4.0, 38), (4.0, 29), (4.0, 25)]
+   ```
+
+   ```sh
+   console.log(statistics.describe())
+   Count: 25
+   Sum:  744
+   Min:  24
+   Max:  38
+   Range:  14
+   Mean:  30
+   Median:  29
+   Mode:  (26, 5)
+   Variance:  17.5
+   Standard Deviation:  4.2
+   Frequency Distribution: [(20.0, 26), (16.0, 27), (12.0, 32), (8.0, 37), (8.0, 34), (8.0, 33), (8.0, 31), (8.0, 24), (4.0, 38), (4.0, 29), (4.0, 25)]
+   ```
+
+🎉 CONGRATULATIONS ! 🎉
+
+[<< Day 8](../08_Day_Objects/08_day_objects.md) | [Day 10 >>](../10_Day_Sets_and_Maps/10_day_Sets_and_Maps.md)
diff --git a/Turkish/09_Day_Higher_order_functions/09_day_starter/data/countries_data.js b/Turkish/09_Day_Higher_order_functions/09_day_starter/data/countries_data.js
new file mode 100644
index 00000000..073cbd61
--- /dev/null
+++ b/Turkish/09_Day_Higher_order_functions/09_day_starter/data/countries_data.js
@@ -0,0 +1,2013 @@
+const countries = [
+  {
+    name: 'Afghanistan',
+    capital: 'Kabul',
+    languages: ['Pashto', 'Uzbek', 'Turkmen'],
+    population: 27657145,
+    flag: 'https://restcountries.eu/data/afg.svg',
+    currency: 'Afghan afghani'
+  },
+  {
+    name: 'Åland Islands',
+    capital: 'Mariehamn',
+    languages: ['Swedish'],
+    population: 28875,
+    flag: 'https://restcountries.eu/data/ala.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Albania',
+    capital: 'Tirana',
+    languages: ['Albanian'],
+    population: 2886026,
+    flag: 'https://restcountries.eu/data/alb.svg',
+    currency: 'Albanian lek'
+  },
+  {
+    name: 'Algeria',
+    capital: 'Algiers',
+    languages: ['Arabic'],
+    population: 40400000,
+    flag: 'https://restcountries.eu/data/dza.svg',
+    currency: 'Algerian dinar'
+  },
+  {
+    name: 'American Samoa',
+    capital: 'Pago Pago',
+    languages: ['English', 'Samoan'],
+    population: 57100,
+    flag: 'https://restcountries.eu/data/asm.svg',
+    currency: 'United State Dollar'
+  },
+  {
+    name: 'Andorra',
+    capital: 'Andorra la Vella',
+    languages: ['Catalan'],
+    population: 78014,
+    flag: 'https://restcountries.eu/data/and.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Angola',
+    capital: 'Luanda',
+    languages: ['Portuguese'],
+    population: 25868000,
+    flag: 'https://restcountries.eu/data/ago.svg',
+    currency: 'Angolan kwanza'
+  },
+  {
+    name: 'Anguilla',
+    capital: 'The Valley',
+    languages: ['English'],
+    population: 13452,
+    flag: 'https://restcountries.eu/data/aia.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
+    name: 'Antarctica',
+    capital: '',
+    languages: ['English', 'Russian'],
+    population: 1000,
+    flag: 'https://restcountries.eu/data/ata.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Antigua and Barbuda',
+    capital: "Saint John's",
+    languages: ['English'],
+    population: 86295,
+    flag: 'https://restcountries.eu/data/atg.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
+    name: 'Argentina',
+    capital: 'Buenos Aires',
+    languages: ['Spanish', 'Guaraní'],
+    population: 43590400,
+    flag: 'https://restcountries.eu/data/arg.svg',
+    currency: 'Argentine peso'
+  },
+  {
+    name: 'Armenia',
+    capital: 'Yerevan',
+    languages: ['Armenian', 'Russian'],
+    population: 2994400,
+    flag: 'https://restcountries.eu/data/arm.svg',
+    currency: 'Armenian dram'
+  },
+  {
+    name: 'Aruba',
+    capital: 'Oranjestad',
+    languages: ['Dutch', '(Eastern) Punjabi'],
+    population: 107394,
+    flag: 'https://restcountries.eu/data/abw.svg',
+    currency: 'Aruban florin'
+  },
+  {
+    name: 'Australia',
+    capital: 'Canberra',
+    languages: ['English'],
+    population: 24117360,
+    flag: 'https://restcountries.eu/data/aus.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Austria',
+    capital: 'Vienna',
+    languages: ['German'],
+    population: 8725931,
+    flag: 'https://restcountries.eu/data/aut.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Azerbaijan',
+    capital: 'Baku',
+    languages: ['Azerbaijani'],
+    population: 9730500,
+    flag: 'https://restcountries.eu/data/aze.svg',
+    currency: 'Azerbaijani manat'
+  },
+  {
+    name: 'Bahamas',
+    capital: 'Nassau',
+    languages: ['English'],
+    population: 378040,
+    flag: 'https://restcountries.eu/data/bhs.svg',
+    currency: 'Bahamian dollar'
+  },
+  {
+    name: 'Bahrain',
+    capital: 'Manama',
+    languages: ['Arabic'],
+    population: 1404900,
+    flag: 'https://restcountries.eu/data/bhr.svg',
+    currency: 'Bahraini dinar'
+  },
+  {
+    name: 'Bangladesh',
+    capital: 'Dhaka',
+    languages: ['Bengali'],
+    population: 161006790,
+    flag: 'https://restcountries.eu/data/bgd.svg',
+    currency: 'Bangladeshi taka'
+  },
+  {
+    name: 'Barbados',
+    capital: 'Bridgetown',
+    languages: ['English'],
+    population: 285000,
+    flag: 'https://restcountries.eu/data/brb.svg',
+    currency: 'Barbadian dollar'
+  },
+  {
+    name: 'Belarus',
+    capital: 'Minsk',
+    languages: ['Belarusian', 'Russian'],
+    population: 9498700,
+    flag: 'https://restcountries.eu/data/blr.svg',
+    currency: 'New Belarusian ruble'
+  },
+  {
+    name: 'Belgium',
+    capital: 'Brussels',
+    languages: ['Dutch', 'French', 'German'],
+    population: 11319511,
+    flag: 'https://restcountries.eu/data/bel.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Belize',
+    capital: 'Belmopan',
+    languages: ['English', 'Spanish'],
+    population: 370300,
+    flag: 'https://restcountries.eu/data/blz.svg',
+    currency: 'Belize dollar'
+  },
+  {
+    name: 'Benin',
+    capital: 'Porto-Novo',
+    languages: ['French'],
+    population: 10653654,
+    flag: 'https://restcountries.eu/data/ben.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Bermuda',
+    capital: 'Hamilton',
+    languages: ['English'],
+    population: 61954,
+    flag: 'https://restcountries.eu/data/bmu.svg',
+    currency: 'Bermudian dollar'
+  },
+  {
+    name: 'Bhutan',
+    capital: 'Thimphu',
+    languages: ['Dzongkha'],
+    population: 775620,
+    flag: 'https://restcountries.eu/data/btn.svg',
+    currency: 'Bhutanese ngultrum'
+  },
+  {
+    name: 'Bolivia (Plurinational State of)',
+    capital: 'Sucre',
+    languages: ['Spanish', 'Aymara', 'Quechua'],
+    population: 10985059,
+    flag: 'https://restcountries.eu/data/bol.svg',
+    currency: 'Bolivian boliviano'
+  },
+  {
+    name: 'Bonaire, Sint Eustatius and Saba',
+    capital: 'Kralendijk',
+    languages: ['Dutch'],
+    population: 17408,
+    flag: 'https://restcountries.eu/data/bes.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Bosnia and Herzegovina',
+    capital: 'Sarajevo',
+    languages: ['Bosnian', 'Croatian', 'Serbian'],
+    population: 3531159,
+    flag: 'https://restcountries.eu/data/bih.svg',
+    currency: 'Bosnia and Herzegovina convertible mark'
+  },
+  {
+    name: 'Botswana',
+    capital: 'Gaborone',
+    languages: ['English', 'Tswana'],
+    population: 2141206,
+    flag: 'https://restcountries.eu/data/bwa.svg',
+    currency: 'Botswana pula'
+  },
+  {
+    name: 'Bouvet Island',
+    capital: '',
+    languages: ['Norwegian', 'Norwegian Bokmål', 'Norwegian Nynorsk'],
+    population: 0,
+    flag: 'https://restcountries.eu/data/bvt.svg',
+    currency: 'Norwegian krone'
+  },
+  {
+    name: 'Brazil',
+    capital: 'Brasília',
+    languages: ['Portuguese'],
+    population: 206135893,
+    flag: 'https://restcountries.eu/data/bra.svg',
+    currency: 'Brazilian real'
+  },
+  {
+    name: 'British Indian Ocean Territory',
+    capital: 'Diego Garcia',
+    languages: ['English'],
+    population: 3000,
+    flag: 'https://restcountries.eu/data/iot.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'United States Minor Outlying Islands',
+    capital: '',
+    languages: ['English'],
+    population: 300,
+    flag: 'https://restcountries.eu/data/umi.svg',
+    currency: 'United States Dollar'
+  },
+  {
+    name: 'Virgin Islands (British)',
+    capital: 'Road Town',
+    languages: ['English'],
+    population: 28514,
+    flag: 'https://restcountries.eu/data/vgb.svg',
+    currency: '[D]'
+  },
+  {
+    name: 'Virgin Islands (U.S.)',
+    capital: 'Charlotte Amalie',
+    languages: ['English'],
+    population: 114743,
+    flag: 'https://restcountries.eu/data/vir.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Brunei Darussalam',
+    capital: 'Bandar Seri Begawan',
+    languages: ['Malay'],
+    population: 411900,
+    flag: 'https://restcountries.eu/data/brn.svg',
+    currency: 'Brunei dollar'
+  },
+  {
+    name: 'Bulgaria',
+    capital: 'Sofia',
+    languages: ['Bulgarian'],
+    population: 7153784,
+    flag: 'https://restcountries.eu/data/bgr.svg',
+    currency: 'Bulgarian lev'
+  },
+  {
+    name: 'Burkina Faso',
+    capital: 'Ouagadougou',
+    languages: ['French', 'Fula'],
+    population: 19034397,
+    flag: 'https://restcountries.eu/data/bfa.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Burundi',
+    capital: 'Bujumbura',
+    languages: ['French', 'Kirundi'],
+    population: 10114505,
+    flag: 'https://restcountries.eu/data/bdi.svg',
+    currency: 'Burundian franc'
+  },
+  {
+    name: 'Cambodia',
+    capital: 'Phnom Penh',
+    languages: ['Khmer'],
+    population: 15626444,
+    flag: 'https://restcountries.eu/data/khm.svg',
+    currency: 'Cambodian riel'
+  },
+  {
+    name: 'Cameroon',
+    capital: 'Yaoundé',
+    languages: ['English', 'French'],
+    population: 22709892,
+    flag: 'https://restcountries.eu/data/cmr.svg',
+    currency: 'Central African CFA franc'
+  },
+  {
+    name: 'Canada',
+    capital: 'Ottawa',
+    languages: ['English', 'French'],
+    population: 36155487,
+    flag: 'https://restcountries.eu/data/can.svg',
+    currency: 'Canadian dollar'
+  },
+  {
+    name: 'Cabo Verde',
+    capital: 'Praia',
+    languages: ['Portuguese'],
+    population: 531239,
+    flag: 'https://restcountries.eu/data/cpv.svg',
+    currency: 'Cape Verdean escudo'
+  },
+  {
+    name: 'Cayman Islands',
+    capital: 'George Town',
+    languages: ['English'],
+    population: 58238,
+    flag: 'https://restcountries.eu/data/cym.svg',
+    currency: 'Cayman Islands dollar'
+  },
+  {
+    name: 'Central African Republic',
+    capital: 'Bangui',
+    languages: ['French', 'Sango'],
+    population: 4998000,
+    flag: 'https://restcountries.eu/data/caf.svg',
+    currency: 'Central African CFA franc'
+  },
+  {
+    name: 'Chad',
+    capital: "N'Djamena",
+    languages: ['French', 'Arabic'],
+    population: 14497000,
+    flag: 'https://restcountries.eu/data/tcd.svg',
+    currency: 'Central African CFA franc'
+  },
+  {
+    name: 'Chile',
+    capital: 'Santiago',
+    languages: ['Spanish'],
+    population: 18191900,
+    flag: 'https://restcountries.eu/data/chl.svg',
+    currency: 'Chilean peso'
+  },
+  {
+    name: 'China',
+    capital: 'Beijing',
+    languages: ['Chinese'],
+    population: 1377422166,
+    flag: 'https://restcountries.eu/data/chn.svg',
+    currency: 'Chinese yuan'
+  },
+  {
+    name: 'Christmas Island',
+    capital: 'Flying Fish Cove',
+    languages: ['English'],
+    population: 2072,
+    flag: 'https://restcountries.eu/data/cxr.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Cocos (Keeling) Islands',
+    capital: 'West Island',
+    languages: ['English'],
+    population: 550,
+    flag: 'https://restcountries.eu/data/cck.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Colombia',
+    capital: 'Bogotá',
+    languages: ['Spanish'],
+    population: 48759958,
+    flag: 'https://restcountries.eu/data/col.svg',
+    currency: 'Colombian peso'
+  },
+  {
+    name: 'Comoros',
+    capital: 'Moroni',
+    languages: ['Arabic', 'French'],
+    population: 806153,
+    flag: 'https://restcountries.eu/data/com.svg',
+    currency: 'Comorian franc'
+  },
+  {
+    name: 'Congo',
+    capital: 'Brazzaville',
+    languages: ['French', 'Lingala'],
+    population: 4741000,
+    flag: 'https://restcountries.eu/data/cog.svg',
+    currency: 'Central African CFA franc'
+  },
+  {
+    name: 'Congo (Democratic Republic of the)',
+    capital: 'Kinshasa',
+    languages: ['French', 'Lingala', 'Kongo', 'Swahili', 'Luba-Katanga'],
+    population: 85026000,
+    flag: 'https://restcountries.eu/data/cod.svg',
+    currency: 'Congolese franc'
+  },
+  {
+    name: 'Cook Islands',
+    capital: 'Avarua',
+    languages: ['English'],
+    population: 18100,
+    flag: 'https://restcountries.eu/data/cok.svg',
+    currency: 'New Zealand dollar'
+  },
+  {
+    name: 'Costa Rica',
+    capital: 'San José',
+    languages: ['Spanish'],
+    population: 4890379,
+    flag: 'https://restcountries.eu/data/cri.svg',
+    currency: 'Costa Rican colón'
+  },
+  {
+    name: 'Croatia',
+    capital: 'Zagreb',
+    languages: ['Croatian'],
+    population: 4190669,
+    flag: 'https://restcountries.eu/data/hrv.svg',
+    currency: 'Croatian kuna'
+  },
+  {
+    name: 'Cuba',
+    capital: 'Havana',
+    languages: ['Spanish'],
+    population: 11239004,
+    flag: 'https://restcountries.eu/data/cub.svg',
+    currency: 'Cuban convertible peso'
+  },
+  {
+    name: 'Curaçao',
+    capital: 'Willemstad',
+    languages: ['Dutch', '(Eastern) Punjabi', 'English'],
+    population: 154843,
+    flag: 'https://restcountries.eu/data/cuw.svg',
+    currency: 'Netherlands Antillean guilder'
+  },
+  {
+    name: 'Cyprus',
+    capital: 'Nicosia',
+    languages: ['Greek (modern)', 'Turkish', 'Armenian'],
+    population: 847000,
+    flag: 'https://restcountries.eu/data/cyp.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Czech Republic',
+    capital: 'Prague',
+    languages: ['Czech', 'Slovak'],
+    population: 10558524,
+    flag: 'https://restcountries.eu/data/cze.svg',
+    currency: 'Czech koruna'
+  },
+  {
+    name: 'Denmark',
+    capital: 'Copenhagen',
+    languages: ['Danish'],
+    population: 5717014,
+    flag: 'https://restcountries.eu/data/dnk.svg',
+    currency: 'Danish krone'
+  },
+  {
+    name: 'Djibouti',
+    capital: 'Djibouti',
+    languages: ['French', 'Arabic'],
+    population: 900000,
+    flag: 'https://restcountries.eu/data/dji.svg',
+    currency: 'Djiboutian franc'
+  },
+  {
+    name: 'Dominica',
+    capital: 'Roseau',
+    languages: ['English'],
+    population: 71293,
+    flag: 'https://restcountries.eu/data/dma.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
+    name: 'Dominican Republic',
+    capital: 'Santo Domingo',
+    languages: ['Spanish'],
+    population: 10075045,
+    flag: 'https://restcountries.eu/data/dom.svg',
+    currency: 'Dominican peso'
+  },
+  {
+    name: 'Ecuador',
+    capital: 'Quito',
+    languages: ['Spanish'],
+    population: 16545799,
+    flag: 'https://restcountries.eu/data/ecu.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Egypt',
+    capital: 'Cairo',
+    languages: ['Arabic'],
+    population: 91290000,
+    flag: 'https://restcountries.eu/data/egy.svg',
+    currency: 'Egyptian pound'
+  },
+  {
+    name: 'El Salvador',
+    capital: 'San Salvador',
+    languages: ['Spanish'],
+    population: 6520675,
+    flag: 'https://restcountries.eu/data/slv.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Equatorial Guinea',
+    capital: 'Malabo',
+    languages: ['Spanish', 'French'],
+    population: 1222442,
+    flag: 'https://restcountries.eu/data/gnq.svg',
+    currency: 'Central African CFA franc'
+  },
+  {
+    name: 'Eritrea',
+    capital: 'Asmara',
+    languages: ['Tigrinya', 'Arabic', 'English'],
+    population: 5352000,
+    flag: 'https://restcountries.eu/data/eri.svg',
+    currency: 'Eritrean nakfa'
+  },
+  {
+    name: 'Estonia',
+    capital: 'Tallinn',
+    languages: ['Estonian'],
+    population: 1315944,
+    flag: 'https://restcountries.eu/data/est.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Ethiopia',
+    capital: 'Addis Ababa',
+    languages: ['Amharic'],
+    population: 92206005,
+    flag: 'https://restcountries.eu/data/eth.svg',
+    currency: 'Ethiopian birr'
+  },
+  {
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+    capital: 'Stanley',
+    languages: ['English'],
+    population: 2563,
+    flag: 'https://restcountries.eu/data/flk.svg',
+    currency: 'Falkland Islands pound'
+  },
+  {
+    name: 'Faroe Islands',
+    capital: 'Tórshavn',
+    languages: ['Faroese'],
+    population: 49376,
+    flag: 'https://restcountries.eu/data/fro.svg',
+    currency: 'Danish krone'
+  },
+  {
+    name: 'Fiji',
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+    languages: ['English', 'Fijian', 'Hindi', 'Urdu'],
+    population: 867000,
+    flag: 'https://restcountries.eu/data/fji.svg',
+    currency: 'Fijian dollar'
+  },
+  {
+    name: 'Finland',
+    capital: 'Helsinki',
+    languages: ['Finnish', 'Swedish'],
+    population: 5491817,
+    flag: 'https://restcountries.eu/data/fin.svg',
+    currency: 'Euro'
+  },
+  {
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+    languages: ['French'],
+    population: 66710000,
+    flag: 'https://restcountries.eu/data/fra.svg',
+    currency: 'Euro'
+  },
+  {
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+    languages: ['French'],
+    population: 254541,
+    flag: 'https://restcountries.eu/data/guf.svg',
+    currency: 'Euro'
+  },
+  {
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+    languages: ['French'],
+    population: 271800,
+    flag: 'https://restcountries.eu/data/pyf.svg',
+    currency: 'CFP franc'
+  },
+  {
+    name: 'French Southern Territories',
+    capital: 'Port-aux-Français',
+    languages: ['French'],
+    population: 140,
+    flag: 'https://restcountries.eu/data/atf.svg',
+    currency: 'Euro'
+  },
+  {
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+    population: 1802278,
+    flag: 'https://restcountries.eu/data/gab.svg',
+    currency: 'Central African CFA franc'
+  },
+  {
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+    flag: 'https://restcountries.eu/data/gmb.svg',
+    currency: 'Gambian dalasi'
+  },
+  {
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+    languages: ['Georgian'],
+    population: 3720400,
+    flag: 'https://restcountries.eu/data/geo.svg',
+    currency: 'Georgian Lari'
+  },
+  {
+    name: 'Germany',
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+    languages: ['German'],
+    population: 81770900,
+    flag: 'https://restcountries.eu/data/deu.svg',
+    currency: 'Euro'
+  },
+  {
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+    languages: ['English'],
+    population: 27670174,
+    flag: 'https://restcountries.eu/data/gha.svg',
+    currency: 'Ghanaian cedi'
+  },
+  {
+    name: 'Gibraltar',
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+    languages: ['English'],
+    population: 33140,
+    flag: 'https://restcountries.eu/data/gib.svg',
+    currency: 'Gibraltar pound'
+  },
+  {
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+    capital: 'Athens',
+    languages: ['Greek (modern)'],
+    population: 10858018,
+    flag: 'https://restcountries.eu/data/grc.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Greenland',
+    capital: 'Nuuk',
+    languages: ['Kalaallisut'],
+    population: 55847,
+    flag: 'https://restcountries.eu/data/grl.svg',
+    currency: 'Danish krone'
+  },
+  {
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+    population: 103328,
+    flag: 'https://restcountries.eu/data/grd.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
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+    capital: 'Basse-Terre',
+    languages: ['French'],
+    population: 400132,
+    flag: 'https://restcountries.eu/data/glp.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Guam',
+    capital: 'Hagåtña',
+    languages: ['English', 'Chamorro', 'Spanish'],
+    population: 184200,
+    flag: 'https://restcountries.eu/data/gum.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Guatemala',
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+    languages: ['Spanish'],
+    population: 16176133,
+    flag: 'https://restcountries.eu/data/gtm.svg',
+    currency: 'Guatemalan quetzal'
+  },
+  {
+    name: 'Guernsey',
+    capital: 'St. Peter Port',
+    languages: ['English', 'French'],
+    population: 62999,
+    flag: 'https://restcountries.eu/data/ggy.svg',
+    currency: 'British pound'
+  },
+  {
+    name: 'Guinea',
+    capital: 'Conakry',
+    languages: ['French', 'Fula'],
+    population: 12947000,
+    flag: 'https://restcountries.eu/data/gin.svg',
+    currency: 'Guinean franc'
+  },
+  {
+    name: 'Guinea-Bissau',
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+    languages: ['Portuguese'],
+    population: 1547777,
+    flag: 'https://restcountries.eu/data/gnb.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Guyana',
+    capital: 'Georgetown',
+    languages: ['English'],
+    population: 746900,
+    flag: 'https://restcountries.eu/data/guy.svg',
+    currency: 'Guyanese dollar'
+  },
+  {
+    name: 'Haiti',
+    capital: 'Port-au-Prince',
+    languages: ['French', 'Haitian'],
+    population: 11078033,
+    flag: 'https://restcountries.eu/data/hti.svg',
+    currency: 'Haitian gourde'
+  },
+  {
+    name: 'Heard Island and McDonald Islands',
+    capital: '',
+    languages: ['English'],
+    population: 0,
+    flag: 'https://restcountries.eu/data/hmd.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Holy See',
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+    languages: ['Latin', 'Italian', 'French', 'German'],
+    population: 451,
+    flag: 'https://restcountries.eu/data/vat.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Honduras',
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+    languages: ['Spanish'],
+    population: 8576532,
+    flag: 'https://restcountries.eu/data/hnd.svg',
+    currency: 'Honduran lempira'
+  },
+  {
+    name: 'Hong Kong',
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+    languages: ['English', 'Chinese'],
+    population: 7324300,
+    flag: 'https://restcountries.eu/data/hkg.svg',
+    currency: 'Hong Kong dollar'
+  },
+  {
+    name: 'Hungary',
+    capital: 'Budapest',
+    languages: ['Hungarian'],
+    population: 9823000,
+    flag: 'https://restcountries.eu/data/hun.svg',
+    currency: 'Hungarian forint'
+  },
+  {
+    name: 'Iceland',
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+    languages: ['Icelandic'],
+    population: 334300,
+    flag: 'https://restcountries.eu/data/isl.svg',
+    currency: 'Icelandic króna'
+  },
+  {
+    name: 'India',
+    capital: 'New Delhi',
+    languages: ['Hindi', 'English'],
+    population: 1295210000,
+    flag: 'https://restcountries.eu/data/ind.svg',
+    currency: 'Indian rupee'
+  },
+  {
+    name: 'Indonesia',
+    capital: 'Jakarta',
+    languages: ['Indonesian'],
+    population: 258705000,
+    flag: 'https://restcountries.eu/data/idn.svg',
+    currency: 'Indonesian rupiah'
+  },
+  {
+    name: "Côte d'Ivoire",
+    capital: 'Yamoussoukro',
+    languages: ['French'],
+    population: 22671331,
+    flag: 'https://restcountries.eu/data/civ.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Iran (Islamic Republic of)',
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+    languages: ['Persian (Farsi)'],
+    population: 79369900,
+    flag: 'https://restcountries.eu/data/irn.svg',
+    currency: 'Iranian rial'
+  },
+  {
+    name: 'Iraq',
+    capital: 'Baghdad',
+    languages: ['Arabic', 'Kurdish'],
+    population: 37883543,
+    flag: 'https://restcountries.eu/data/irq.svg',
+    currency: 'Iraqi dinar'
+  },
+  {
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+    languages: ['Irish', 'English'],
+    population: 6378000,
+    flag: 'https://restcountries.eu/data/irl.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Isle of Man',
+    capital: 'Douglas',
+    languages: ['English', 'Manx'],
+    population: 84497,
+    flag: 'https://restcountries.eu/data/imn.svg',
+    currency: 'British pound'
+  },
+  {
+    name: 'Israel',
+    capital: 'Jerusalem',
+    languages: ['Hebrew (modern)', 'Arabic'],
+    population: 8527400,
+    flag: 'https://restcountries.eu/data/isr.svg',
+    currency: 'Israeli new shekel'
+  },
+  {
+    name: 'Italy',
+    capital: 'Rome',
+    languages: ['Italian'],
+    population: 60665551,
+    flag: 'https://restcountries.eu/data/ita.svg',
+    currency: 'Euro'
+  },
+  {
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+    languages: ['English'],
+    population: 2723246,
+    flag: 'https://restcountries.eu/data/jam.svg',
+    currency: 'Jamaican dollar'
+  },
+  {
+    name: 'Japan',
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+    languages: ['Japanese'],
+    population: 126960000,
+    flag: 'https://restcountries.eu/data/jpn.svg',
+    currency: 'Japanese yen'
+  },
+  {
+    name: 'Jersey',
+    capital: 'Saint Helier',
+    languages: ['English', 'French'],
+    population: 100800,
+    flag: 'https://restcountries.eu/data/jey.svg',
+    currency: 'British pound'
+  },
+  {
+    name: 'Jordan',
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+    languages: ['Arabic'],
+    population: 9531712,
+    flag: 'https://restcountries.eu/data/jor.svg',
+    currency: 'Jordanian dinar'
+  },
+  {
+    name: 'Kazakhstan',
+    capital: 'Astana',
+    languages: ['Kazakh', 'Russian'],
+    population: 17753200,
+    flag: 'https://restcountries.eu/data/kaz.svg',
+    currency: 'Kazakhstani tenge'
+  },
+  {
+    name: 'Kenya',
+    capital: 'Nairobi',
+    languages: ['English', 'Swahili'],
+    population: 47251000,
+    flag: 'https://restcountries.eu/data/ken.svg',
+    currency: 'Kenyan shilling'
+  },
+  {
+    name: 'Kiribati',
+    capital: 'South Tarawa',
+    languages: ['English'],
+    population: 113400,
+    flag: 'https://restcountries.eu/data/kir.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Kuwait',
+    capital: 'Kuwait City',
+    languages: ['Arabic'],
+    population: 4183658,
+    flag: 'https://restcountries.eu/data/kwt.svg',
+    currency: 'Kuwaiti dinar'
+  },
+  {
+    name: 'Kyrgyzstan',
+    capital: 'Bishkek',
+    languages: ['Kyrgyz', 'Russian'],
+    population: 6047800,
+    flag: 'https://restcountries.eu/data/kgz.svg',
+    currency: 'Kyrgyzstani som'
+  },
+  {
+    name: "Lao People's Democratic Republic",
+    capital: 'Vientiane',
+    languages: ['Lao'],
+    population: 6492400,
+    flag: 'https://restcountries.eu/data/lao.svg',
+    currency: 'Lao kip'
+  },
+  {
+    name: 'Latvia',
+    capital: 'Riga',
+    languages: ['Latvian'],
+    population: 1961600,
+    flag: 'https://restcountries.eu/data/lva.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Lebanon',
+    capital: 'Beirut',
+    languages: ['Arabic', 'French'],
+    population: 5988000,
+    flag: 'https://restcountries.eu/data/lbn.svg',
+    currency: 'Lebanese pound'
+  },
+  {
+    name: 'Lesotho',
+    capital: 'Maseru',
+    languages: ['English', 'Southern Sotho'],
+    population: 1894194,
+    flag: 'https://restcountries.eu/data/lso.svg',
+    currency: 'Lesotho loti'
+  },
+  {
+    name: 'Liberia',
+    capital: 'Monrovia',
+    languages: ['English'],
+    population: 4615000,
+    flag: 'https://restcountries.eu/data/lbr.svg',
+    currency: 'Liberian dollar'
+  },
+  {
+    name: 'Libya',
+    capital: 'Tripoli',
+    languages: ['Arabic'],
+    population: 6385000,
+    flag: 'https://restcountries.eu/data/lby.svg',
+    currency: 'Libyan dinar'
+  },
+  {
+    name: 'Liechtenstein',
+    capital: 'Vaduz',
+    languages: ['German'],
+    population: 37623,
+    flag: 'https://restcountries.eu/data/lie.svg',
+    currency: 'Swiss franc'
+  },
+  {
+    name: 'Lithuania',
+    capital: 'Vilnius',
+    languages: ['Lithuanian'],
+    population: 2872294,
+    flag: 'https://restcountries.eu/data/ltu.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Luxembourg',
+    capital: 'Luxembourg',
+    languages: ['French', 'German', 'Luxembourgish'],
+    population: 576200,
+    flag: 'https://restcountries.eu/data/lux.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Macao',
+    capital: '',
+    languages: ['Chinese', 'Portuguese'],
+    population: 649100,
+    flag: 'https://restcountries.eu/data/mac.svg',
+    currency: 'Macanese pataca'
+  },
+  {
+    name: 'Macedonia (the former Yugoslav Republic of)',
+    capital: 'Skopje',
+    languages: ['Macedonian'],
+    population: 2058539,
+    flag: 'https://restcountries.eu/data/mkd.svg',
+    currency: 'Macedonian denar'
+  },
+  {
+    name: 'Madagascar',
+    capital: 'Antananarivo',
+    languages: ['French', 'Malagasy'],
+    population: 22434363,
+    flag: 'https://restcountries.eu/data/mdg.svg',
+    currency: 'Malagasy ariary'
+  },
+  {
+    name: 'Malawi',
+    capital: 'Lilongwe',
+    languages: ['English', 'Chichewa'],
+    population: 16832910,
+    flag: 'https://restcountries.eu/data/mwi.svg',
+    currency: 'Malawian kwacha'
+  },
+  {
+    name: 'Malaysia',
+    capital: 'Kuala Lumpur',
+    languages: ['Malaysian'],
+    population: 31405416,
+    flag: 'https://restcountries.eu/data/mys.svg',
+    currency: 'Malaysian ringgit'
+  },
+  {
+    name: 'Maldives',
+    capital: 'Malé',
+    languages: ['Divehi'],
+    population: 344023,
+    flag: 'https://restcountries.eu/data/mdv.svg',
+    currency: 'Maldivian rufiyaa'
+  },
+  {
+    name: 'Mali',
+    capital: 'Bamako',
+    languages: ['French'],
+    population: 18135000,
+    flag: 'https://restcountries.eu/data/mli.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Malta',
+    capital: 'Valletta',
+    languages: ['Maltese', 'English'],
+    population: 425384,
+    flag: 'https://restcountries.eu/data/mlt.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Marshall Islands',
+    capital: 'Majuro',
+    languages: ['English', 'Marshallese'],
+    population: 54880,
+    flag: 'https://restcountries.eu/data/mhl.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Martinique',
+    capital: 'Fort-de-France',
+    languages: ['French'],
+    population: 378243,
+    flag: 'https://restcountries.eu/data/mtq.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Mauritania',
+    capital: 'Nouakchott',
+    languages: ['Arabic'],
+    population: 3718678,
+    flag: 'https://restcountries.eu/data/mrt.svg',
+    currency: 'Mauritanian ouguiya'
+  },
+  {
+    name: 'Mauritius',
+    capital: 'Port Louis',
+    languages: ['English'],
+    population: 1262879,
+    flag: 'https://restcountries.eu/data/mus.svg',
+    currency: 'Mauritian rupee'
+  },
+  {
+    name: 'Mayotte',
+    capital: 'Mamoudzou',
+    languages: ['French'],
+    population: 226915,
+    flag: 'https://restcountries.eu/data/myt.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Mexico',
+    capital: 'Mexico City',
+    languages: ['Spanish'],
+    population: 122273473,
+    flag: 'https://restcountries.eu/data/mex.svg',
+    currency: 'Mexican peso'
+  },
+  {
+    name: 'Micronesia (Federated States of)',
+    capital: 'Palikir',
+    languages: ['English'],
+    population: 102800,
+    flag: 'https://restcountries.eu/data/fsm.svg',
+    currency: '[D]'
+  },
+  {
+    name: 'Moldova (Republic of)',
+    capital: 'Chișinău',
+    languages: ['Romanian'],
+    population: 3553100,
+    flag: 'https://restcountries.eu/data/mda.svg',
+    currency: 'Moldovan leu'
+  },
+  {
+    name: 'Monaco',
+    capital: 'Monaco',
+    languages: ['French'],
+    population: 38400,
+    flag: 'https://restcountries.eu/data/mco.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Mongolia',
+    capital: 'Ulan Bator',
+    languages: ['Mongolian'],
+    population: 3093100,
+    flag: 'https://restcountries.eu/data/mng.svg',
+    currency: 'Mongolian tögrög'
+  },
+  {
+    name: 'Montenegro',
+    capital: 'Podgorica',
+    languages: ['Serbian', 'Bosnian', 'Albanian', 'Croatian'],
+    population: 621810,
+    flag: 'https://restcountries.eu/data/mne.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Montserrat',
+    capital: 'Plymouth',
+    languages: ['English'],
+    population: 4922,
+    flag: 'https://restcountries.eu/data/msr.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
+    name: 'Morocco',
+    capital: 'Rabat',
+    languages: ['Arabic'],
+    population: 33337529,
+    flag: 'https://restcountries.eu/data/mar.svg',
+    currency: 'Moroccan dirham'
+  },
+  {
+    name: 'Mozambique',
+    capital: 'Maputo',
+    languages: ['Portuguese'],
+    population: 26423700,
+    flag: 'https://restcountries.eu/data/moz.svg',
+    currency: 'Mozambican metical'
+  },
+  {
+    name: 'Myanmar',
+    capital: 'Naypyidaw',
+    languages: ['Burmese'],
+    population: 51419420,
+    flag: 'https://restcountries.eu/data/mmr.svg',
+    currency: 'Burmese kyat'
+  },
+  {
+    name: 'Namibia',
+    capital: 'Windhoek',
+    languages: ['English', 'Afrikaans'],
+    population: 2324388,
+    flag: 'https://restcountries.eu/data/nam.svg',
+    currency: 'Namibian dollar'
+  },
+  {
+    name: 'Nauru',
+    capital: 'Yaren',
+    languages: ['English', 'Nauruan'],
+    population: 10084,
+    flag: 'https://restcountries.eu/data/nru.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Nepal',
+    capital: 'Kathmandu',
+    languages: ['Nepali'],
+    population: 28431500,
+    flag: 'https://restcountries.eu/data/npl.svg',
+    currency: 'Nepalese rupee'
+  },
+  {
+    name: 'Netherlands',
+    capital: 'Amsterdam',
+    languages: ['Dutch'],
+    population: 17019800,
+    flag: 'https://restcountries.eu/data/nld.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'New Caledonia',
+    capital: 'Nouméa',
+    languages: ['French'],
+    population: 268767,
+    flag: 'https://restcountries.eu/data/ncl.svg',
+    currency: 'CFP franc'
+  },
+  {
+    name: 'New Zealand',
+    capital: 'Wellington',
+    languages: ['English', 'Māori'],
+    population: 4697854,
+    flag: 'https://restcountries.eu/data/nzl.svg',
+    currency: 'New Zealand dollar'
+  },
+  {
+    name: 'Nicaragua',
+    capital: 'Managua',
+    languages: ['Spanish'],
+    population: 6262703,
+    flag: 'https://restcountries.eu/data/nic.svg',
+    currency: 'Nicaraguan córdoba'
+  },
+  {
+    name: 'Niger',
+    capital: 'Niamey',
+    languages: ['French'],
+    population: 20715000,
+    flag: 'https://restcountries.eu/data/ner.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Nigeria',
+    capital: 'Abuja',
+    languages: ['English'],
+    population: 186988000,
+    flag: 'https://restcountries.eu/data/nga.svg',
+    currency: 'Nigerian naira'
+  },
+  {
+    name: 'Niue',
+    capital: 'Alofi',
+    languages: ['English'],
+    population: 1470,
+    flag: 'https://restcountries.eu/data/niu.svg',
+    currency: 'New Zealand dollar'
+  },
+  {
+    name: 'Norfolk Island',
+    capital: 'Kingston',
+    languages: ['English'],
+    population: 2302,
+    flag: 'https://restcountries.eu/data/nfk.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: "Korea (Democratic People's Republic of)",
+    capital: 'Pyongyang',
+    languages: ['Korean'],
+    population: 25281000,
+    flag: 'https://restcountries.eu/data/prk.svg',
+    currency: 'North Korean won'
+  },
+  {
+    name: 'Northern Mariana Islands',
+    capital: 'Saipan',
+    languages: ['English', 'Chamorro'],
+    population: 56940,
+    flag: 'https://restcountries.eu/data/mnp.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Norway',
+    capital: 'Oslo',
+    languages: ['Norwegian', 'Norwegian Bokmål', 'Norwegian Nynorsk'],
+    population: 5223256,
+    flag: 'https://restcountries.eu/data/nor.svg',
+    currency: 'Norwegian krone'
+  },
+  {
+    name: 'Oman',
+    capital: 'Muscat',
+    languages: ['Arabic'],
+    population: 4420133,
+    flag: 'https://restcountries.eu/data/omn.svg',
+    currency: 'Omani rial'
+  },
+  {
+    name: 'Pakistan',
+    capital: 'Islamabad',
+    languages: ['English', 'Urdu'],
+    population: 194125062,
+    flag: 'https://restcountries.eu/data/pak.svg',
+    currency: 'Pakistani rupee'
+  },
+  {
+    name: 'Palau',
+    capital: 'Ngerulmud',
+    languages: ['English'],
+    population: 17950,
+    flag: 'https://restcountries.eu/data/plw.svg',
+    currency: '[E]'
+  },
+  {
+    name: 'Palestine, State of',
+    capital: 'Ramallah',
+    languages: ['Arabic'],
+    population: 4682467,
+    flag: 'https://restcountries.eu/data/pse.svg',
+    currency: 'Israeli new sheqel'
+  },
+  {
+    name: 'Panama',
+    capital: 'Panama City',
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+    population: 3814672,
+    flag: 'https://restcountries.eu/data/pan.svg',
+    currency: 'Panamanian balboa'
+  },
+  {
+    name: 'Papua New Guinea',
+    capital: 'Port Moresby',
+    languages: ['English'],
+    population: 8083700,
+    flag: 'https://restcountries.eu/data/png.svg',
+    currency: 'Papua New Guinean kina'
+  },
+  {
+    name: 'Paraguay',
+    capital: 'Asunción',
+    languages: ['Spanish', 'Guaraní'],
+    population: 6854536,
+    flag: 'https://restcountries.eu/data/pry.svg',
+    currency: 'Paraguayan guaraní'
+  },
+  {
+    name: 'Peru',
+    capital: 'Lima',
+    languages: ['Spanish'],
+    population: 31488700,
+    flag: 'https://restcountries.eu/data/per.svg',
+    currency: 'Peruvian sol'
+  },
+  {
+    name: 'Philippines',
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+    flag: 'https://restcountries.eu/data/phl.svg',
+    currency: 'Philippine peso'
+  },
+  {
+    name: 'Pitcairn',
+    capital: 'Adamstown',
+    languages: ['English'],
+    population: 56,
+    flag: 'https://restcountries.eu/data/pcn.svg',
+    currency: 'New Zealand dollar'
+  },
+  {
+    name: 'Poland',
+    capital: 'Warsaw',
+    languages: ['Polish'],
+    population: 38437239,
+    flag: 'https://restcountries.eu/data/pol.svg',
+    currency: 'Polish złoty'
+  },
+  {
+    name: 'Portugal',
+    capital: 'Lisbon',
+    languages: ['Portuguese'],
+    population: 10374822,
+    flag: 'https://restcountries.eu/data/prt.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Puerto Rico',
+    capital: 'San Juan',
+    languages: ['Spanish', 'English'],
+    population: 3474182,
+    flag: 'https://restcountries.eu/data/pri.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Qatar',
+    capital: 'Doha',
+    languages: ['Arabic'],
+    population: 2587564,
+    flag: 'https://restcountries.eu/data/qat.svg',
+    currency: 'Qatari riyal'
+  },
+  {
+    name: 'Republic of Kosovo',
+    capital: 'Pristina',
+    languages: ['Albanian', 'Serbian'],
+    population: 1733842,
+    flag: 'https://restcountries.eu/data/kos.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Réunion',
+    capital: 'Saint-Denis',
+    languages: ['French'],
+    population: 840974,
+    flag: 'https://restcountries.eu/data/reu.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Romania',
+    capital: 'Bucharest',
+    languages: ['Romanian'],
+    population: 19861408,
+    flag: 'https://restcountries.eu/data/rou.svg',
+    currency: 'Romanian leu'
+  },
+  {
+    name: 'Russian Federation',
+    capital: 'Moscow',
+    languages: ['Russian'],
+    population: 146599183,
+    flag: 'https://restcountries.eu/data/rus.svg',
+    currency: 'Russian ruble'
+  },
+  {
+    name: 'Rwanda',
+    capital: 'Kigali',
+    languages: ['Kinyarwanda', 'English', 'French'],
+    population: 11553188,
+    flag: 'https://restcountries.eu/data/rwa.svg',
+    currency: 'Rwandan franc'
+  },
+  {
+    name: 'Saint Barthélemy',
+    capital: 'Gustavia',
+    languages: ['French'],
+    population: 9417,
+    flag: 'https://restcountries.eu/data/blm.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Saint Helena, Ascension and Tristan da Cunha',
+    capital: 'Jamestown',
+    languages: ['English'],
+    population: 4255,
+    flag: 'https://restcountries.eu/data/shn.svg',
+    currency: 'Saint Helena pound'
+  },
+  {
+    name: 'Saint Kitts and Nevis',
+    capital: 'Basseterre',
+    languages: ['English'],
+    population: 46204,
+    flag: 'https://restcountries.eu/data/kna.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
+    name: 'Saint Lucia',
+    capital: 'Castries',
+    languages: ['English'],
+    population: 186000,
+    flag: 'https://restcountries.eu/data/lca.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
+    name: 'Saint Martin (French part)',
+    capital: 'Marigot',
+    languages: ['English', 'French', 'Dutch'],
+    population: 36979,
+    flag: 'https://restcountries.eu/data/maf.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Saint Pierre and Miquelon',
+    capital: 'Saint-Pierre',
+    languages: ['French'],
+    population: 6069,
+    flag: 'https://restcountries.eu/data/spm.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Saint Vincent and the Grenadines',
+    capital: 'Kingstown',
+    languages: ['English'],
+    population: 109991,
+    flag: 'https://restcountries.eu/data/vct.svg',
+    currency: 'East Caribbean dollar'
+  },
+  {
+    name: 'Samoa',
+    capital: 'Apia',
+    languages: ['Samoan', 'English'],
+    population: 194899,
+    flag: 'https://restcountries.eu/data/wsm.svg',
+    currency: 'Samoan tālā'
+  },
+  {
+    name: 'San Marino',
+    capital: 'City of San Marino',
+    languages: ['Italian'],
+    population: 33005,
+    flag: 'https://restcountries.eu/data/smr.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Sao Tome and Principe',
+    capital: 'São Tomé',
+    languages: ['Portuguese'],
+    population: 187356,
+    flag: 'https://restcountries.eu/data/stp.svg',
+    currency: 'São Tomé and Príncipe dobra'
+  },
+  {
+    name: 'Saudi Arabia',
+    capital: 'Riyadh',
+    languages: ['Arabic'],
+    population: 32248200,
+    flag: 'https://restcountries.eu/data/sau.svg',
+    currency: 'Saudi riyal'
+  },
+  {
+    name: 'Senegal',
+    capital: 'Dakar',
+    languages: ['French'],
+    population: 14799859,
+    flag: 'https://restcountries.eu/data/sen.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Serbia',
+    capital: 'Belgrade',
+    languages: ['Serbian'],
+    population: 7076372,
+    flag: 'https://restcountries.eu/data/srb.svg',
+    currency: 'Serbian dinar'
+  },
+  {
+    name: 'Seychelles',
+    capital: 'Victoria',
+    languages: ['French', 'English'],
+    population: 91400,
+    flag: 'https://restcountries.eu/data/syc.svg',
+    currency: 'Seychellois rupee'
+  },
+  {
+    name: 'Sierra Leone',
+    capital: 'Freetown',
+    languages: ['English'],
+    population: 7075641,
+    flag: 'https://restcountries.eu/data/sle.svg',
+    currency: 'Sierra Leonean leone'
+  },
+  {
+    name: 'Singapore',
+    capital: 'Singapore',
+    languages: ['English', 'Malay', 'Tamil', 'Chinese'],
+    population: 5535000,
+    flag: 'https://restcountries.eu/data/sgp.svg',
+    currency: 'Brunei dollar'
+  },
+  {
+    name: 'Sint Maarten (Dutch part)',
+    capital: 'Philipsburg',
+    languages: ['Dutch', 'English'],
+    population: 38247,
+    flag: 'https://restcountries.eu/data/sxm.svg',
+    currency: 'Netherlands Antillean guilder'
+  },
+  {
+    name: 'Slovakia',
+    capital: 'Bratislava',
+    languages: ['Slovak'],
+    population: 5426252,
+    flag: 'https://restcountries.eu/data/svk.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Slovenia',
+    capital: 'Ljubljana',
+    languages: ['Slovene'],
+    population: 2064188,
+    flag: 'https://restcountries.eu/data/svn.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Solomon Islands',
+    capital: 'Honiara',
+    languages: ['English'],
+    population: 642000,
+    flag: 'https://restcountries.eu/data/slb.svg',
+    currency: 'Solomon Islands dollar'
+  },
+  {
+    name: 'Somalia',
+    capital: 'Mogadishu',
+    languages: ['Somali', 'Arabic'],
+    population: 11079000,
+    flag: 'https://restcountries.eu/data/som.svg',
+    currency: 'Somali shilling'
+  },
+  {
+    name: 'South Africa',
+    capital: 'Pretoria',
+    languages: [
+      'Afrikaans',
+      'English',
+      'Southern Ndebele',
+      'Southern Sotho',
+      'Swati',
+      'Tswana',
+      'Tsonga',
+      'Venda',
+      'Xhosa',
+      'Zulu'
+    ],
+    population: 55653654,
+    flag: 'https://restcountries.eu/data/zaf.svg',
+    currency: 'South African rand'
+  },
+  {
+    name: 'South Georgia and the South Sandwich Islands',
+    capital: 'King Edward Point',
+    languages: ['English'],
+    population: 30,
+    flag: 'https://restcountries.eu/data/sgs.svg',
+    currency: 'British pound'
+  },
+  {
+    name: 'Korea (Republic of)',
+    capital: 'Seoul',
+    languages: ['Korean'],
+    population: 50801405,
+    flag: 'https://restcountries.eu/data/kor.svg',
+    currency: 'South Korean won'
+  },
+  {
+    name: 'South Sudan',
+    capital: 'Juba',
+    languages: ['English'],
+    population: 12131000,
+    flag: 'https://restcountries.eu/data/ssd.svg',
+    currency: 'South Sudanese pound'
+  },
+  {
+    name: 'Spain',
+    capital: 'Madrid',
+    languages: ['Spanish'],
+    population: 46438422,
+    flag: 'https://restcountries.eu/data/esp.svg',
+    currency: 'Euro'
+  },
+  {
+    name: 'Sri Lanka',
+    capital: 'Colombo',
+    languages: ['Sinhalese', 'Tamil'],
+    population: 20966000,
+    flag: 'https://restcountries.eu/data/lka.svg',
+    currency: 'Sri Lankan rupee'
+  },
+  {
+    name: 'Sudan',
+    capital: 'Khartoum',
+    languages: ['Arabic', 'English'],
+    population: 39598700,
+    flag: 'https://restcountries.eu/data/sdn.svg',
+    currency: 'Sudanese pound'
+  },
+  {
+    name: 'Suriname',
+    capital: 'Paramaribo',
+    languages: ['Dutch'],
+    population: 541638,
+    flag: 'https://restcountries.eu/data/sur.svg',
+    currency: 'Surinamese dollar'
+  },
+  {
+    name: 'Svalbard and Jan Mayen',
+    capital: 'Longyearbyen',
+    languages: ['Norwegian'],
+    population: 2562,
+    flag: 'https://restcountries.eu/data/sjm.svg',
+    currency: 'Norwegian krone'
+  },
+  {
+    name: 'Swaziland',
+    capital: 'Lobamba',
+    languages: ['English', 'Swati'],
+    population: 1132657,
+    flag: 'https://restcountries.eu/data/swz.svg',
+    currency: 'Swazi lilangeni'
+  },
+  {
+    name: 'Sweden',
+    capital: 'Stockholm',
+    languages: ['Swedish'],
+    population: 9894888,
+    flag: 'https://restcountries.eu/data/swe.svg',
+    currency: 'Swedish krona'
+  },
+  {
+    name: 'Switzerland',
+    capital: 'Bern',
+    languages: ['German', 'French', 'Italian'],
+    population: 8341600,
+    flag: 'https://restcountries.eu/data/che.svg',
+    currency: 'Swiss franc'
+  },
+  {
+    name: 'Syrian Arab Republic',
+    capital: 'Damascus',
+    languages: ['Arabic'],
+    population: 18564000,
+    flag: 'https://restcountries.eu/data/syr.svg',
+    currency: 'Syrian pound'
+  },
+  {
+    name: 'Taiwan',
+    capital: 'Taipei',
+    languages: ['Chinese'],
+    population: 23503349,
+    flag: 'https://restcountries.eu/data/twn.svg',
+    currency: 'New Taiwan dollar'
+  },
+  {
+    name: 'Tajikistan',
+    capital: 'Dushanbe',
+    languages: ['Tajik', 'Russian'],
+    population: 8593600,
+    flag: 'https://restcountries.eu/data/tjk.svg',
+    currency: 'Tajikistani somoni'
+  },
+  {
+    name: 'Tanzania, United Republic of',
+    capital: 'Dodoma',
+    languages: ['Swahili', 'English'],
+    population: 55155000,
+    flag: 'https://restcountries.eu/data/tza.svg',
+    currency: 'Tanzanian shilling'
+  },
+  {
+    name: 'Thailand',
+    capital: 'Bangkok',
+    languages: ['Thai'],
+    population: 65327652,
+    flag: 'https://restcountries.eu/data/tha.svg',
+    currency: 'Thai baht'
+  },
+  {
+    name: 'Timor-Leste',
+    capital: 'Dili',
+    languages: ['Portuguese'],
+    population: 1167242,
+    flag: 'https://restcountries.eu/data/tls.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Togo',
+    capital: 'Lomé',
+    languages: ['French'],
+    population: 7143000,
+    flag: 'https://restcountries.eu/data/tgo.svg',
+    currency: 'West African CFA franc'
+  },
+  {
+    name: 'Tokelau',
+    capital: 'Fakaofo',
+    languages: ['English'],
+    population: 1411,
+    flag: 'https://restcountries.eu/data/tkl.svg',
+    currency: 'New Zealand dollar'
+  },
+  {
+    name: 'Tonga',
+    capital: "Nuku'alofa",
+    languages: ['English', 'Tonga (Tonga Islands)'],
+    population: 103252,
+    flag: 'https://restcountries.eu/data/ton.svg',
+    currency: 'Tongan paʻanga'
+  },
+  {
+    name: 'Trinidad and Tobago',
+    capital: 'Port of Spain',
+    languages: ['English'],
+    population: 1349667,
+    flag: 'https://restcountries.eu/data/tto.svg',
+    currency: 'Trinidad and Tobago dollar'
+  },
+  {
+    name: 'Tunisia',
+    capital: 'Tunis',
+    languages: ['Arabic'],
+    population: 11154400,
+    flag: 'https://restcountries.eu/data/tun.svg',
+    currency: 'Tunisian dinar'
+  },
+  {
+    name: 'Turkey',
+    capital: 'Ankara',
+    languages: ['Turkish'],
+    population: 78741053,
+    flag: 'https://restcountries.eu/data/tur.svg',
+    currency: 'Turkish lira'
+  },
+  {
+    name: 'Turkmenistan',
+    capital: 'Ashgabat',
+    languages: ['Turkmen', 'Russian'],
+    population: 4751120,
+    flag: 'https://restcountries.eu/data/tkm.svg',
+    currency: 'Turkmenistan manat'
+  },
+  {
+    name: 'Turks and Caicos Islands',
+    capital: 'Cockburn Town',
+    languages: ['English'],
+    population: 31458,
+    flag: 'https://restcountries.eu/data/tca.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Tuvalu',
+    capital: 'Funafuti',
+    languages: ['English'],
+    population: 10640,
+    flag: 'https://restcountries.eu/data/tuv.svg',
+    currency: 'Australian dollar'
+  },
+  {
+    name: 'Uganda',
+    capital: 'Kampala',
+    languages: ['English', 'Swahili'],
+    population: 33860700,
+    flag: 'https://restcountries.eu/data/uga.svg',
+    currency: 'Ugandan shilling'
+  },
+  {
+    name: 'Ukraine',
+    capital: 'Kiev',
+    languages: ['Ukrainian'],
+    population: 42692393,
+    flag: 'https://restcountries.eu/data/ukr.svg',
+    currency: 'Ukrainian hryvnia'
+  },
+  {
+    name: 'United Arab Emirates',
+    capital: 'Abu Dhabi',
+    languages: ['Arabic'],
+    population: 9856000,
+    flag: 'https://restcountries.eu/data/are.svg',
+    currency: 'United Arab Emirates dirham'
+  },
+  {
+    name: 'United Kingdom of Great Britain and Northern Ireland',
+    capital: 'London',
+    languages: ['English'],
+    population: 65110000,
+    flag: 'https://restcountries.eu/data/gbr.svg',
+    currency: 'British pound'
+  },
+  {
+    name: 'United States of America',
+    capital: 'Washington, D.C.',
+    languages: ['English'],
+    population: 323947000,
+    flag: 'https://restcountries.eu/data/usa.svg',
+    currency: 'United States dollar'
+  },
+  {
+    name: 'Uruguay',
+    capital: 'Montevideo',
+    languages: ['Spanish'],
+    population: 3480222,
+    flag: 'https://restcountries.eu/data/ury.svg',
+    currency: 'Uruguayan peso'
+  },
+  {
+    name: 'Uzbekistan',
+    capital: 'Tashkent',
+    languages: ['Uzbek', 'Russian'],
+    population: 31576400,
+    flag: 'https://restcountries.eu/data/uzb.svg',
+    currency: "Uzbekistani so'm"
+  },
+  {
+    name: 'Vanuatu',
+    capital: 'Port Vila',
+    languages: ['Bislama', 'English', 'French'],
+    population: 277500,
+    flag: 'https://restcountries.eu/data/vut.svg',
+    currency: 'Vanuatu vatu'
+  },
+  {
+    name: 'Venezuela (Bolivarian Republic of)',
+    capital: 'Caracas',
+    languages: ['Spanish'],
+    population: 31028700,
+    flag: 'https://restcountries.eu/data/ven.svg',
+    currency: 'Venezuelan bolívar'
+  },
+  {
+    name: 'Viet Nam',
+    capital: 'Hanoi',
+    languages: ['Vietnamese'],
+    population: 92700000,
+    flag: 'https://restcountries.eu/data/vnm.svg',
+    currency: 'Vietnamese đồng'
+  },
+  {
+    name: 'Wallis and Futuna',
+    capital: 'Mata-Utu',
+    languages: ['French'],
+    population: 11750,
+    flag: 'https://restcountries.eu/data/wlf.svg',
+    currency: 'CFP franc'
+  },
+  {
+    name: 'Western Sahara',
+    capital: 'El Aaiún',
+    languages: ['Spanish'],
+    population: 510713,
+    flag: 'https://restcountries.eu/data/esh.svg',
+    currency: 'Moroccan dirham'
+  },
+  {
+    name: 'Yemen',
+    capital: "Sana'a",
+    languages: ['Arabic'],
+    population: 27478000,
+    flag: 'https://restcountries.eu/data/yem.svg',
+    currency: 'Yemeni rial'
+  },
+  {
+    name: 'Zambia',
+    capital: 'Lusaka',
+    languages: ['English'],
+    population: 15933883,
+    flag: 'https://restcountries.eu/data/zmb.svg',
+    currency: 'Zambian kwacha'
+  },
+  {
+    name: 'Zimbabwe',
+    capital: 'Harare',
+    languages: ['English', 'Shona', 'Northern Ndebele'],
+    population: 14240168,
+    flag: 'https://restcountries.eu/data/zwe.svg',
+    currency: 'Botswana pula'
+  }
+]
diff --git a/Turkish/09_Day_Higher_order_functions/09_day_starter/index.html b/Turkish/09_Day_Higher_order_functions/09_day_starter/index.html
new file mode 100644
index 00000000..423ea5fd
--- /dev/null
+++ b/Turkish/09_Day_Higher_order_functions/09_day_starter/index.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+	<title>30DaysOfJavaScript:09 Day </title>
+</head>
+
+<body>
+	<h1>30DaysOfJavaScript:09 Day</h1>
+	<h2>Functional Programming</h2>
+
+	<script src="./data/countries_data.js"></script>
+	<script src="./scripts/main.js"></script>
+
+</body>
+
+</html>
\ No newline at end of file
diff --git a/Turkish/09_Day_Higher_order_functions/09_day_starter/scripts/main.js b/Turkish/09_Day_Higher_order_functions/09_day_starter/scripts/main.js
new file mode 100644
index 00000000..421fb87a
--- /dev/null
+++ b/Turkish/09_Day_Higher_order_functions/09_day_starter/scripts/main.js
@@ -0,0 +1,2 @@
+console.log(countries)
+alert('Open the console and check if the countries has been loaded')
\ No newline at end of file

From e2cd117ee1ae106d664c658cdf98d4376cde750d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=BCseyin=20Alav?=
 <73330164+hsynalv@users.noreply.github.com>
Date: Tue, 22 Nov 2022 20:11:00 +0300
Subject: [PATCH 2/2] .

---
 .../09_day_higher_order_functions.md                     | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Turkish/09_Day_Higher_order_functions/09_day_higher_order_functions.md b/Turkish/09_Day_Higher_order_functions/09_day_higher_order_functions.md
index 6da5ee69..65715005 100644
--- a/Turkish/09_Day_Higher_order_functions/09_day_higher_order_functions.md
+++ b/Turkish/09_Day_Higher_order_functions/09_day_higher_order_functions.md
@@ -27,7 +27,7 @@
 		- [Setting time](#setting-time)
 			- [Setting Interval using a setInterval function](#setinterval-fonksiyonu-ile-süre-ayarlama)
 			- [Setting a time using a setTimeout](#settimeout-ile-zaman-ayarlama)
-	- [Functional Programming- Fonksiyonel Programlama](#functional-programming)
+	- [Functional Programming- Fonksiyonel Programlama](#functional-programming---fonksiyonel-programalama)
 		- [forEach](#foreach)
 		- [map](#map)
 		- [filter](#filter)
@@ -37,14 +37,15 @@
 		- [findIndex](#findindex)
 		- [some](#some)
 		- [sort](#sort)
-			- [Sorting string values](#sorting-string-values)
-			- [Sorting Numeric values](#sorting-numeric-values)
-			- [Sorting Object Arrays](#sorting-object-arrays)
+			- [Sorting string values](#string-değerleri-sıralama)
+			- [Sorting Numeric values](#sayısal-değerleri-sıralama)
+			- [Sorting Object Arrays](#array-nesnelerini-sıralamak)
 	- [💻 Exercises](#-exercises)
 		- [Exercises: Level 1](#exercises-level-1)
 		- [Exercises: Level 2](#exercises-level-2)
 		- [Exercises: Level 3](#exercises-level-3)
 
+
 # Day 9
 
 ## Higher Order Function