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JavaScript (JS)

A programming language that makes it possible to dynamically insert content, links, metadata, or other elements, on websites. JavaScript can potentially make it difficult for search engine bots to crawl and index webpages and increase the time it takes for a webpage to load for users.

Why is JavaScript the only client-side language available?

JavaScript isn’t and never was “the only client-side language”. At most, for a certain period of time, JavaScript was the only programming language with built-in support in all major browsers. As you can see, even in the beginning, JavaScript wasn’t alone, but rather existing side-by-side with Java inside the browser.

Do all web browsers support JavaScript?

Almost all the mainstream web browsers support JavaScript. A few text-based browsers like Lynx (web browser) don’t support it. But the userbase of these browsers is very very small. However, in a browser that supports JavaScript, the user may choose to disable it. This means that the scripts on your site will not be executed.

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