Contenu du cours

Introduction to JavaScript

1. Getting Started

First Javascript Console Application Challenge: Showing some Output Challenge: Outputing Multiple Lines Dealing with Numbers Challenge: Working with Numbers Challenge: Calculating the Speed of a Car Challenge: Calculating Area of a Trapezium Outputting Multiple Values Challenge: Consoling Meaningful Output How to Use Comments in Javascript?Challenge: Adding a Comment Multi-Line Comments Challenge: Commenting out Code What Is JavaScript anyway?

2. Manipulating Data

Storing Data Challenge: Declaring a Variable Challenge: Accessing Data From a Variable Challenge: Fixing Variable Names Challenge: Reassigning a Variable Constants Challenge: Declaring & Using Constants Performing Arithmetic On Variables Challenge: Making a Salary Calculator Challenge: Adjusting Salary with a Bonus Exploring Primitive Data Types Challenge: Declaring a Boolean Value How different Data Types Interact Challenge: Concatenating Strings Challenge: Creating User Profile & Activity Details

3. Conditional Statements

Comparison Operators Challenge: Checking Age Eligibility The `if` Statement Challenge: Weather-Based Outfit Recommender Challenge: Even or Odd Nested Conditional Statements The `else` Clause Challenge: Improving Even or Odd Checker Challenge: Temperature Advisor The `else if` Clause Challenge: Grade Categorizer ` AND` Logical Operator Challenge: Checking if a Number is Even and Positive OR Logical Operator Challenge: Accessing Control System

4. Mastering Functions

What Are Functions?Challenge: Simple Function Challenge: Calculating the Speed of a Car Scopes Passing Data into Functions Challenge: Fixing the Speed Function Challenge: Improving the Grade Categorizer Task: Defining a Compound Function Returning Data from Functions Default Values Challenge: Email Auto-Responder with Default Parameters

5. Exploring Arrays

What Are Arrays?Challenge: Defining An Array Challenge: Indexing Adding Values to an Array Challenge: Pushing Elements to an Array Removing Elements from an Array Challenge: Practicing `pop` & `shift`The `length` Property Challenge: Counting Elements The `includes` Method Challenge: Searching for Animals in the Zoo

6. Discovering Loops

The `for` Loop Task: Printing a Sequence The `while` Loop Challenge: Printing Fibonacci Sequence The `do-while` Loop Challenge: Random Multiple of 7 Using Loops with Arrays Challenge: Finding the Average Price of Items Summary

Exploring Primitive Data Types

Summary

There are two types of numbers in JavaScript:
- Integers: Discrete numbers like 1, 2, 3, -1, -2, -3, etc;
- Floats(Floating-Point Numbers): Numerical values that have a decimal in them (e.g., 3.14, -0.5).
Booleans are values that can be either true or false;
Null (null) values represent the intentional absence of data.

1. Which of the following is a primitive data type in JavaScript?

2. What is the primitive data type used to represent `true` or `false` values?

3. Which of the following represents a floating-point number?

Which of the following is a primitive data type in JavaScript?

Select the correct answer

Object

Array

String

Function

What is the primitive data type used to represent true or false values?

Select the correct answer

Number

Boolean

String

Undefined

Which of the following represents a floating-point number?

Select the correct answer

52

3.14

true

null

Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 2. Chapitre 11

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Posez n'importe quelle question ou essayez l'une des questions suggérées pour commencer notre discussion

Contenu du cours

Introduction to JavaScript

1. Getting Started

2. Manipulating Data

3. Conditional Statements

4. Mastering Functions

5. Exploring Arrays

6. Discovering Loops

Exploring Primitive Data Types

Summary

There are two types of numbers in JavaScript:
- Integers: Discrete numbers like 1, 2, 3, -1, -2, -3, etc;
- Floats(Floating-Point Numbers): Numerical values that have a decimal in them (e.g., 3.14, -0.5).
Booleans are values that can be either true or false;
Null (null) values represent the intentional absence of data.

1. Which of the following is a primitive data type in JavaScript?

2. What is the primitive data type used to represent `true` or `false` values?

3. Which of the following represents a floating-point number?

Which of the following is a primitive data type in JavaScript?

Select the correct answer

Object

Array

String

Function

What is the primitive data type used to represent true or false values?

Select the correct answer

Number

Boolean

String

Undefined

Which of the following represents a floating-point number?

Select the correct answer

52

3.14

true

null

Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 2. Chapitre 11

Introduction to JavaScript

Exploring Primitive Data Types

Summary

1. Which of the following is a primitive data type in JavaScript?

2. What is the primitive data type used to represent true or false values?

3. Which of the following represents a floating-point number?

Introduction to JavaScript

Exploring Primitive Data Types

Summary

1. Which of the following is a primitive data type in JavaScript?

2. What is the primitive data type used to represent true or false values?

3. Which of the following represents a floating-point number?

2. What is the primitive data type used to represent `true` or `false` values?

2. What is the primitive data type used to represent `true` or `false` values?