From f270fd65af2001d68e242f6ddfe78ca5dad08920 Mon Sep 17 00:00:00 2001
From: Jose Linardo <joligo94861@gmail.com>
Date: Sun, 26 Jun 2022 15:38:00 -0500
Subject: [PATCH 1/2] day 10 level 1 done

---
 .../10_day_starter/scripts/main.js            | 43 ++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js b/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js
index c6045c8..5f5eff7 100644
--- a/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js
+++ b/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js
@@ -1,2 +1,43 @@
 console.log(countries)
-alert('Open the console and check if the countries has been loaded')
\ No newline at end of file
+//alert('Open the console and check if the countries has been loaded')
+
+//Exercises:Level 1
+/*const a = [4, 5, 8, 9]
+const b = [3, 4, 5, 7]
+const countries = ['Finland', 'Sweden', 'Norway']*/
+
+//1.create an empty set
+const set = new Set();
+//2.Create a set containing 0 to 10 using loop
+const set1 = new Set();
+for (let i = 0; i < 10; i++) {
+  set.add(i);
+}
+
+console.log(set);
+//3. Remove an element from a set
+const arr = [2, 8, 10, 7];
+const set2 = new Set(arr);
+set.delete(10);
+
+console.log(set2);  // Set(3) {2, 8, 7}
+//4. Clear a set
+const arr1 = ['a', 'b', 'c', 'd'];
+const set3 = new Set(arr);
+set.clear();
+
+console.log(set3); 
+//5. Create a set of 5 string elements from array
+const fruits = ['apple', 'mango', 'kiwi', 'peach', 'orange']
+const setOfFruits = new Set(fruits);
+
+console.log(setOfFruits);
+//6. Create a map of countries and number of characters of a country
+const countries = ['Finland', 'Sweden', 'Denmark', 'Norway', 'IceLand'];
+const mapOfCountries = new Map();
+
+for (const ctr of countries) {
+  mapOfCountries.set(ctr, ctr.length)
+}
+
+console.log(mapOfCountries);

From d76074f097e1be9e7654152b350c11de6f90884b Mon Sep 17 00:00:00 2001
From: Jose Linardo <joligo94861@gmail.com>
Date: Sun, 26 Jun 2022 21:00:03 -0500
Subject: [PATCH 2/2] day 10 level 3 done

---
 .../10_day_starter/scripts/main.js            | 93 +++++++++++++++++--
 1 file changed, 84 insertions(+), 9 deletions(-)

diff --git a/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js b/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js
index 5f5eff7..00fb961 100644
--- a/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js
+++ b/10_Day_Sets_and_Maps/10_day_starter/scripts/main.js
@@ -11,20 +11,19 @@ const set = new Set();
 //2.Create a set containing 0 to 10 using loop
 const set1 = new Set();
 for (let i = 0; i < 10; i++) {
-  set.add(i);
+  set1.add(i); //Set(10) {0, 1, 2, 3, 4, …}
 }
-
-console.log(set);
+console.log(set1);
 //3. Remove an element from a set
 const arr = [2, 8, 10, 7];
 const set2 = new Set(arr);
-set.delete(10);
+set2.delete(10); //Set(3) {2, 8, 7}
 
 console.log(set2);  // Set(3) {2, 8, 7}
 //4. Clear a set
 const arr1 = ['a', 'b', 'c', 'd'];
 const set3 = new Set(arr);
-set.clear();
+set3.clear(); //Set(0) {size: 0}
 
 console.log(set3); 
 //5. Create a set of 5 string elements from array
@@ -33,11 +32,87 @@ const setOfFruits = new Set(fruits);
 
 console.log(setOfFruits);
 //6. Create a map of countries and number of characters of a country
-const countries = ['Finland', 'Sweden', 'Denmark', 'Norway', 'IceLand'];
+const countries_ = ['Finland', 'Sweden', 'Denmark', 'Norway', 'IceLand'];
 const mapOfCountries = new Map();
 
-for (const ctr of countries) {
-  mapOfCountries.set(ctr, ctr.length)
+for (const country of countries_) {
+  mapOfCountries.set(country, country.length)
+}
+console.log(mapOfCountries)
+
+//Exercises:Level 2
+
+//1. Find a union b
+let a = [17, 54, 23, 98, 19]
+let b = [18, 22, 17, 20, 21, 98]
+let c = [...a, ...b]
+
+let C = new Set(c);
+
+console.log(C);
+//2. Find a intersection b
+let A = new Set(a);
+let B = new Set(b)
+
+let d = a.filter(num => B.has(num))
+let D = new Set(d)
+
+console.log(D)
+//3. Find a with b
+let e = a.filter(num => !B.has(num))
+let E = new Set(e)
+console.log(E)
+
+// Exercises:Level 3
+
+//1. How many languages are there in the countries object file.
+const languages = countries.map((element) => element.languages);
+console.log(languages)
+const unionLangs = languages.reduce((acc, cur) => [...acc, ...cur], [])
+const uniqLangs = new Set(unionLangs)
+console.log(uniqLangs.size) //112
+
+//2. Use the countries data to find the 10 most spoken languages:
+// Your output should look like this
+/*console.log(mostSpokenLanguages(countries, 10))
+[
+  { English: 91 },
+  { French: 45 },
+  { Arabic: 25 },
+  { Spanish: 24 },
+  { Russian: 9 },
+  { Portuguese: 9 },
+  { Dutch: 8 },
+  { German: 7 },
+  { Chinese: 5 },
+  { Swahili: 4 },
+  { Serbian: 4 }
+]
+
+// Your output should look like this
+console.log(mostSpokenLanguages(countries, 3))
+[
+{English:91},
+{French:45},
+{Arabic:25}
+]*/
+
+const langArr = [];
+for (const l of uniqLangs) {
+  const count =  unionLangs.filter((lang) => lang === l).length;
+  langArr.push({ [l] : count});
+}
+
+const sortedLang = langArr.sort((a, b) => {
+  return Object.values(b) - Object.values(a)
+});
+
+console.log(sortedLang)
+
+function mostSpokenLanguages(num) {
+  const langObject = sortedLang.filter((element) =>
+    sortedLang.indexOf(element) < num);
+  return langObject;
 }
+console.log(mostSpokenLanguages(10));
 
-console.log(mapOfCountries);