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

` AND` Logical Operator

Definition

Logical operators allow us to combine multiple boolean expressions into a single, more complex condition.

The AND operator (&&) is a logical operator, which joins two or more expressions and returns true only if all the expressions evaluate to true.

For example, we can combine the conditions a >= 10 and a <= 20 using the && operator:

js

This expression means: "a is greater than or equal to 10 AND a is less than or equal to 20."

1. What does the `&&` (AND) operator do in JavaScript?

2. Which of the following conditions will evaluate to false if `x = 8`?

Tout était clair ?

Merci pour vos commentaires !

Section 3. Chapitre 12

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Contenu du cours

Introduction to JavaScript

1. Getting Started

2. Manipulating Data

3. Conditional Statements

4. Mastering Functions

5. Exploring Arrays

6. Discovering Loops

` AND` Logical Operator

Definition

Logical operators allow us to combine multiple boolean expressions into a single, more complex condition.

The AND operator (&&) is a logical operator, which joins two or more expressions and returns true only if all the expressions evaluate to true.

For example, we can combine the conditions a >= 10 and a <= 20 using the && operator:

js

This expression means: "a is greater than or equal to 10 AND a is less than or equal to 20."

1. What does the `&&` (AND) operator do in JavaScript?

2. Which of the following conditions will evaluate to false if `x = 8`?

Tout était clair ?

Merci pour vos commentaires !

Section 3. Chapitre 12

Introduction to JavaScript

` AND` Logical Operator

1. What does the && (AND) operator do in JavaScript?

2. Which of the following conditions will evaluate to false if x = 8?

Introduction to JavaScript

` AND` Logical Operator

1. What does the && (AND) operator do in JavaScript?

2. Which of the following conditions will evaluate to false if x = 8?

1. What does the `&&` (AND) operator do in JavaScript?

2. Which of the following conditions will evaluate to false if `x = 8`?

1. What does the `&&` (AND) operator do in JavaScript?

2. Which of the following conditions will evaluate to false if `x = 8`?