Summary  
This chapter covers the AND (`&&`) logical operator, showing how to join multiple Boolean expressions into a single compound condition that evaluates to true only if all subconditions are true.

General domain of usage  
Validating numeric ranges via conditional branching.

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

Definition

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
a >= 10 && a <= 20
```

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




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

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

Dive into the world of the most popular language for front-end development – JavaScript. JavaScript is a language built into almost every browser and can be used for a wide variety of tasks. Learn the basic functionality and prepare yourself for the challenges and more advanced programming techniques.

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Learn how to write expressions that evaluate to "true" or "false" based on conditions, such as "Is X equal to Y?". This will be followed by an exploration of conditional statements that allow the conditional execution of specific lines of code.

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Loops are a fundamental feature in programming used to reduce redundancy and handle repetitive tasks efficiently. The content covers the three main types of loops in JavaScript, their syntax, use cases, and how they can be combined with arrays to streamline operations and improve performance.

` 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`?

` 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`?

` 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?

` 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`?