switch(value) Last updated: 17. Jul 2023

A JavaScript switch statement is a control flow construct that allows code to be executed conditionally based on the match between a provided expression's value and specific case values, often used as a more readable alternative to a series of if-else statements.

Parameters

Name	Type	Description
value	expression	Value/expression to evaluate in the following case statements.

Returns

null

Example

Code example (JS)

JS is normal JavaScript either running in the browser or on the Docly™ server.

let value = 'banana';

switch (value) {
  case 'apple':
    write('This is an apple');
    break;
  case 'banana':
    write('This is a banana');
    break;
  default:
    write('Unknown fruit');
}

Output

The JS code above produces the output shown below:

This is a banana