Warning: Although
unescape()
is not strictly deprecated (as in "removed from the Web standards"), it is defined in Annex B of the ECMA-262 standard, whose introduction states:
β¦ All of the language features and behaviours specified in this annex have one or more undesirable characteristics and in the absence of legacy usage would be removed from this specification. β¦
β¦ Programmers should not use or assume the existence of these features and behaviours when writing new ECMAScript code. β¦
The unescape()
function computes a new string in which hexadecimal escape sequences are replaced with the character that it represents. The escape sequences might be introduced by a function like escape
. Usually, decodeURI
or decodeURIComponent
are preferred over unescape
.
Note: Do not use
unescape
to decode URIs, use decodeURI
instead.Syntax
unescape(str)
Parameters
str
- A string to be decoded.
Return value
A new string in which certain characters have been unescaped.
Description
The unescape
function is a property of the global object.
Examples
Using unescape
unescape('abc123'); // "abc123" unescape('%E4%F6%FC'); // "Àâü" unescape('%u0107'); // "Δ"
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'unescape' in that specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
unescape | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 1 | IE Full support 3 | Opera Full support 3 | Safari Full support 1 | WebView Android Full support 1 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support 10.1 | Safari iOS Full support 1 | Samsung Internet Android Full support 1.0 | nodejs Full support 0.1.100 |
Legend
- Full support
- Full support
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.