Pure JavaScript

switch

JavaScript1.2+, JScript 3.0+ NES3+, Nav4+, IE4+ Syntax

switch(expression){
  case label1:
							code;
    break;
  case label2:
							code;
    break;
  case labelN:
							code;
    break;
  default:
    code;
}

Description

The switch statement allows you to process the expression passed by matching it with a label—from label1 to labelN. If there is a match, the code following that label is executed. If the expression passed does not match a label, the default section is executed. Note that you can have as many labels as you deem necessary in your script.

Example

Listing 6.262 has a text field and a button. Users are asked to enter a day of the week into the field. When they press the button, a function is called that contains a switch, which verifies they entered a correct ...