Pure JavaScript

unescape()

JavaScript 1.0+, JScript 1.0+, ECMAScript 1.0+ NES2+, Nav2+, IE3+, Opera3+ Syntax

unescape(string)

Description

The unescape() method takes a hexadecimal value and returns the ISO-Latin-1 ASCII equivalent. This method performs the opposite operation of the escape() method and is commonly used to escape user-entered data before form submission.

Example

Listing 6.269 declares a local variable, escapedVal, and passes it to the unescape() method. The result, "@", is then written to the page.

Listing 6.269 Using the unescape() Method to Convert a Hexadecimal Value to its ASCII Equivalent

<script language="JavaScript"> <!–– Hide // create a variable var escapedVal = "%40"; // evaluate the variable and place the value in a variable ...