levels

02_Day/02_day_data_types.md

@@ -39,8 +39,8 @@
       - [String to Int](#string-to-int)
       - [String to Float](#string-to-float)
       - [Float to Int](#float-to-int)
-- [💻 Day 2: Exercises](#%f0%9f%92%bb-day-2-exercises)
+  - [💻 Day 2: Exercises](#%f0%9f%92%bb-day-2-exercises)
-  - [Exercise: Level 1](#exercise-level-1)
+    - [Exercise: Level 1](#exercise-level-1)
     - [Exercise: Level 2](#exercise-level-2)
     - [Exercises: Level 3](#exercises-level-3)
 
@@ -135,7 +135,7 @@ role:'teaching',
 country:'Finland'
 }
 
-console.log(userOne == userTwo)
+console.log(userOne == userTwo) // false
 ```
 
 Rule of thumb, we do not compare non-primitive data types. Do not compare array, function, or object.
@@ -879,9 +879,9 @@ console.log(numInt) // 9
 
 🌕  You are awesome. You have just completed day 2 challenges and you are two steps a head in to your way to greatness. Now do some exercises for your brain and for your muscle.  
 
-# 💻 Day 2: Exercises
+## 💻 Day 2: Exercises
 
-## Exercise: Level 1
+### Exercise: Level 1
 
 1. Declare a variable name challenge and assign it to an initial value **'30 Days Of JavaScript'**.
 2. Print the string on the browser console using __console.log()__

05_Day/05_day_arrays.md

@@ -766,15 +766,13 @@ const webTechs = [
     ```
 
     - Sort the array and find the min and max age
-    - Find the min age and the max age
     - Find the median age(one middle item or two middle items divided by two)
     - Find the average age(all items divided by number of items)
     - Find the range of the ages(max minus min)
     - Compare the value of (min - average) and (max - average), use *abs()* method
 1.Slice the first ten countries from the [countries array](https://github.com/Asabeneh/30DaysOfJavaScript/tree/master/data/countries.js)
 1. Find the middle country(ies) in the [countries array](https://github.com/Asabeneh/30DaysOfJavaScript/tree/master/data/countries.js)
-1. Find the middle country(ies) in the [countries array](https://github.com/Asabeneh/30DaysOfJavaScript/tree/master/data/countries.js)
+2. Divide the countries array into two equal arrays if it is even.  If countries array is not even , one more country for the first half.
-1. Divide the countries array into two equal arrays if it is even.  If countries array is not even , one more country for the first half.
   
 🎉 CONGRATULATIONS ! 🎉
 

07_Day/07_day_functions.md

@@ -690,7 +690,7 @@ console.log('Weight of an object in Newton: ', weightOfObject(100, 1.62)) // gra
 1. Write a function called _isPrime_, which checks if a number is prime number.
 1. Write a functions which checks if all items are unique in the array.
 1. Write a function which checks if all the items of the array are the same data type.
-1. JavaScript variable name does not support special characters or symbols except \$ or \_. Write a function **\*isValidVariable** which check if a variable is valid or invalid variable.
+1. JavaScript variable name does not support special characters or symbols except \$ or \_. Write a function **isValidVariable** which check if a variable is valid or invalid variable.
 1. Write a function which returns array of seven random numbers in a range of 0-9. All the numbers must be unique.
 
     ```js

08_Day/08_day_objects.md

@@ -572,15 +572,12 @@ console.log(copyPerson.hasOwnProperty('score'))
   ]
   ```
 
- Imagine you are getting the above users collection from a MongoDB database.
+  Imagine you are getting the above users collection from a MongoDB database.
-
+    a. Create a function called signUp which allows user to add to the collection. If user exists, inform the user that he has already an account.
-  a. Create a function called signUp which allows user to add to the collection. If user exists, inform the user that he has already an account.
+    b. Create a function called signIn which allows user to sign in to the application
-  b. Create a function called signIn which allows user to sign in to the application
-
 3. The products array has three elements and each of them has six properties.
-
+    a. Create a function called rateProduct which rates the product
-  a. Create a function called rateProduct which rates the product
+    b. Create a function called averageRating which calculate the average rating of a product
-  b. Create a function called averageRating which calculate the average rating of a product
 
 4. Create a function called likeProduct. This function will helps to like to the product if it is not liked and remove like if it was liked.
 

10_Day/10_day_Set_and_Map.md

@@ -13,7 +13,7 @@
   </sub>
 </div>
 
-[<< Day 9](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/09_Day/09_day_higher_order_functions.md) | [Day 11>>](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/11_Day/11_destructuring_and_spreading.md)
+[<< Day 9](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/09_Day/09_day_higher_order_functions.md) | [Day 11>>](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/11_Day/11_destructuring_and_spread.md)
 
 ![Day 5](../images/banners/day_1_10.png)
 
@@ -438,4 +438,4 @@ const countries = ['Finland', 'Sweden', 'Norway']
 
 🎉 CONGRATULATIONS ! 🎉
 
-[<< Day 9](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/09_Day/09_day_higher_order_functions.md) | [Day 11>>](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/11_Day/11_destructuring_and_spreading.md)
+[<< Day 9](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/09_Day/09_day_higher_order_functions.md) | [Day 11>>](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/11_Day/11_destructuring_and_spread.md)