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JavaScript

JavaScript Switch

JavaScript switch statements check a value against many cases.

Read Time

5 min read

Difficulty

Beginner

Last Updated

Jun 15, 2026

Version

v1.0.0

Introduction

JavaScript uses the switch statement as a cleaner alternative to writing many `if...else` statements. Developers pass a single value into the switch, and the computer jumps directly to the matching case.

Example

1/* this uses a switch */
2switch(day) {
3  case 1:
4    text = "Monday";
5    break;
6  case 2:
7    text = "Tuesday";
8    break;
9}

Key Points

The `switch` statement evaluates one expression.
The `case` keyword defines a possible match.
The `break` keyword stops the switch from running further.
The `default` keyword runs if no cases match.

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