Summary  
This chapter covers comparison operators for forming boolean expressions that compare values—covering loose (`==`, `!=`) and strict (`===`, `!==`) equality as well as relational comparisons (`<`, `>`, `<=`, `>=`) to evaluate to true or false.

General domain of usage  
Conditional logic and control flow in code.

**Comparison Operators**, as expressed by the name, are operators that can be used for **comparing** data.

Definition

For example, we can use the **equals to** (`==`) operator to check if two values are equal. This outputs `true` or `false` based on whether the two values are equal or not. 



let a = 5;
let b = 10;
console.log(a == b);

The expression `a == b` is known as a **boolean expression** because it evaluates into a boolean value (`true` or `false`).

The **equals to operator** (`==`) is not the same as the **assignment operator** (`=`).

Note

There's a similar operator known as the **not equals to** (`!=`) operator. It simply returns `true` if the two values are not equal:

let a = 5;
let b = 10;
console.log(a != b);

There are some other operators which can be used for comparing values:

What will be the output of the following code?

Which of the following operators checks if two values are equal?

What is the difference between `=` and `==` in JavaScript?

Which of the following statements will return `true` ?

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.

An introduction to JavaScript, covering the basic syntax of the language along with key terms and concepts that form the foundation for learning advanced features. The section includes hands-on tasks designed to help practice these concepts and make the content easy to remember without effort.

Comparison Operators

1. What will be the output of the following code?

2. Which of the following operators checks if two values are equal?

3. What is the difference between `=` and `==` in JavaScript?

4. What will be the output of this code?

5. Which of the following statements will return `true` ?