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 Yes Notes Full support Yes Notes Notes Returns the browser UI language, not the value of the `Accept-Language` HTTP header.	Edge Full support Yes	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`. Full support 5 Notes Notes Starting in Firefox 5.0 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 Yes	Safari Full support Yes	WebView Android Full support Yes Notes Full support Yes Notes Notes Returns the browser UI language, not the value of the `Accept-Language` HTTP header.	Chrome Android Full support Yes Notes Full support Yes 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 Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes Notes Full support Yes Notes Notes Returns the browser UI language, not the value of the `Accept-Language` HTTP header.