unescape

已废弃的unescape() 方法计算生成一个新的字符串，其中的十六进制转义序列将被其表示的字符替换。上述的转义序列就像escape里介绍的一样。因为 unescape 已经废弃，建议使用 decodeURI或者decodeURIComponent 替代本方法。

注意：不要使用unescape去解码URLS，使用decodeURI替代。

语法

unescape(str)

str被编码过的字符串。

一个未被转义的新字符串。

unescape函数是全局对象的一个属性。

unescape('abc123'     // "abc123"
unescape('%E4%F6%FC'  // "äöü"
unescape('%u0107'     // "ć"

Specification	Status	Comment
ECMAScript 1st Edition (ECMA-262)The definition of 'unescape' in that specification.	Standard	Initial definition.
ECMAScript 5.1 (ECMA-262)The definition of 'unescape' in that specification.	Standard	Defined in the (informative) Compatibility Annex B
ECMAScript 2015 (6th Edition, ECMA-262)The definition of 'unescape' in that specification.	Standard	Defined in the (normative) Annex B for Additional ECMAScript Features for Web Browsers
ECMAScript Latest Draft (ECMA-262)The definition of 'unescape' in that specification.	Living Standard	Defined in the (normative) Annex B for Additional ECMAScript Features for Web Browsers

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)

Feature	Android	Chrome for Android	Edge	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)