The decodeURI()
function decodes a Uniform Resource Identifier (URI) previously created by encodeURI()
or by a similar routine.
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Syntax
decodeURI(encodedURI)
Parameters
encodedURI
- A complete, encoded Uniform Resource Identifier.
Return value
A new string representing the unencoded version of the given encoded Uniform Resource Identifier (URI).
Exceptions
Throws an URIError
("malformed URI sequence") exception when encodedURI
contains invalid character sequences.
Description
Replaces each escape sequence in the encoded URI with the character that it represents, but does not decode escape sequences that could not have been introduced by encodeURI
. The character “#
” is not decoded from escape sequences.
Examples
Decoding a Cyrillic URL
decodeURI('https://developer.mozilla.org/ru/docs/JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B'); // "https://developer.mozilla.org/ru/docs/JavaScript_шеллы"
Catching errors
try { var a = decodeURI('%E0%A4%A'); } catch(e) { console.error(e); } // URIError: malformed URI sequence
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 3rd Edition (ECMA-262) | Standard | Initial definition. |
ECMAScript 5.1 (ECMA-262) The definition of 'decodeURI' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'decodeURI' in that specification. |
Standard | |
ECMAScript Latest Draft (ECMA-262) The definition of 'decodeURI' in that specification. |
Draft |
Browser compatibility
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
decodeURI | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 1 | IE Full support 5.5 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support 1 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support 1.0 | nodejs Full support Yes |
Legend
- Full support
- Full support