How to Change the Language of an HTML Document Using JavaScript?

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To change the language of an HTML document using JavaScript, you can set the lang attribute of the html element to the appropriate language code. Here’s an example:

// Set the language of the document to French
document.documentElement.lang = 'fr';

In this example, document.documentElement selects the <html> element of the document, and document.documentElement.lang = 'fr' sets its lang attribute to the language code for French.

You can replace 'fr' with any other valid language code, such as 'en' for English, 'es' for Spanish, etc.

Note that changing the language of the document may affect how the browser renders certain elements, such as date and time formats, text direction, and font styles. It may also affect the behavior of certain scripts or libraries that rely on language-specific settings.

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