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)
参数
str
被编码过的字符串。
返回值
一个未被转义的新字符串。
描述
unescape
函数是全局对象的一个属性。
示例
unescape('abc123'); // "abc123"
unescape('%E4%F6%FC'); // "äöü"
unescape('%u0107'); // "ć"
规范
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 |
浏览器兼容性
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) |
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