How to detect the language setting of a user's browser using JavaScript?

How to use JavaScript to detect the language setting of the user's browser?

With the development of the Internet, the internationalization of websites is becoming more and more important. In order to provide a better user experience, we need to display corresponding content and functions according to the user's language settings. In JavaScript, we can detect the language setting of the user's browser through simple code.

The following is a sample code that shows how to use JavaScript to detect the language setting of the user's browser:

// 检测用户浏览器语言设置
function detectBrowserLanguage() {
  var language = window.navigator.languages
    ? window.navigator.languages[0]
    : window.navigator.userLanguage || window.navigator.language;

  return language;
}

// 获取用户浏览器语言设置并输出
var userLanguage = detectBrowserLanguage();
console.log("用户浏览器语言设置为：" + userLanguage);

In the above code, we define a function detectBrowserLanguage() , used to detect the language setting of the user's browser. In the function, we use the languages attribute of the navigator object to obtain the user's language preference list. If the browser does not support this attribute, the next best thing is to use userLanguage or language to get the user's language settings.

Subsequently, we call the detectBrowserLanguage() function to obtain the user's language setting and store the result in the variable userLanguage. Finally, we use the console.log() function to output the user's language settings to the console.

When we run the above code, the console will output something similar to the following:

用户浏览器语言设置为：zh-CN

With this example, we can easily use JavaScript to detect the language setting of the user's browser. According to the user's language settings, we can make corresponding international adjustments to provide users with a more personalized and friendly website experience.

It should be noted that the properties of the navigator object may be slightly different in different browsers. Therefore, when actually using it, we need to consider the compatibility of the browser and do Good error handling. In addition, we can also judge the value of the language setting and execute different code logic to achieve more fine-grained internationalization adjustments.

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