Intl.getCanonicalLocales() 方法返回一个数组，数组包含规范的区域语言代码，重复的元素将会被去除，每一个元素都会被验证为格式有效的区域语言代码。
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Intl.getCanonicalLocales(locales)locales一个包含规范区域语言代码的数组。
Intl.getCanonicalLocales('EN-US'); // ["en-US"]
Intl.getCanonicalLocales(['EN-US', 'Fr']); // ["en-US", "fr"]
Intl.getCanonicalLocales('EN_US');
// RangeError:'EN_US' is not a structurally valid language tag
| Specification | Status | Comment |
|---|---|---|
| ECMAScript Internationalization API 4.0 (ECMA-402) Intl.getCanonicalLocales |
Draft | Initial definition |
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
getCanonicalLocales | Chrome Full support 54 | Edge Full support 16 | Firefox Full support 48 | IE No support No | Opera No support No | Safari Full support 11 | WebView Android No support No | Chrome Android No support No | Edge Mobile No support No | Firefox Android Full support 56 | Opera Android No support No | Safari iOS Full support 11 | Samsung Internet Android No support No | nodejs No support No |