NavigatorLanguage.language

NavigatorLanguage.language 只读属性返回一个表示用户偏好语言的字符串，通常指浏览器 UI 的语言。

语法

let lang = navigator.language;

一个 DOMString。lang 存储一个表示语言版本（在 BCP 47 中定义）的字符串。合法的语言版本有 "zh-CN"、"en"、"en-US"、"fr"、"es-ES" 等。

注意 macOS 和 iOS 平台上的 Safari（10.2 之前版本），国家代码为小写："zh-cn"、"en-us"、"fr-fr" 等。

if ( window.navigator.language != 'zh-CN' ) {       
  doLangSelect(window.navigator.language); 
}

标准	状态	备注
HTML Living Standard NavigatorLanguage: language	Living Standard	初次定义

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`language`	Chrome Full support 1 Notes Full support 1 Notes Notes Returns the browser UI language, not the value of the `Accept-Language` HTTP header.	Edge Full support 12 Notes Full support 12 Notes Notes In Chromium versions of Edge, this returns the browser UI language, not the value of the `Accept-Language` HTTP header.	Firefox Full support 1 Notes Full support 1 Notes Notes Prior to Firefox 4, this property's value was also part of the user agent string, as reported by `navigator.userAgent`. Starting in Firefox 5, this property's value is based on the value of the `Accept-Language` HTTP header.	IE Full support 11 Notes Full support 11 Notes Notes Closest available (non-standard) properties are `userLanguage` and `browserLanguage`.	Opera Full support 4	Safari Full support 1	WebView Android Full support 1 Notes Full support 1 Notes Notes Returns the browser UI language, not the value of the `Accept-Language` HTTP header.	Chrome Android Full support 18 Notes Full support 18 Notes Notes Returns the browser UI language, not the value of the `Accept-Language` HTTP header.	Firefox Android Full support 4	Opera Android Full support 10.1	Safari iOS Full support 1	Samsung Internet Android Full support 1.0 Notes Full support 1.0 Notes Notes Returns the browser UI language, not the value of the `Accept-Language` HTTP header.