Navigator.language
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Navigator.language 是一個唯讀的屬性，回傳使用者偏好的語言字串，通常是瀏覽器 UI 的文字
語法
js
const lang = navigator.language
值
範例
js
if (/^en\b/.test(navigator.language)) {
doLangSelect(window.navigator.language);
}
規格
| Specification |
|---|
| HTML # dom-navigator-language-dev |