JavaScript is a dialect of the standardized ECMAScript programming language, primarily used for scripting web-pages. Use this tag for questions regarding ECMAScript and its dialects/ implementations: JavaScript, JScript, etc., excluding ActionScript.

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prototype.js or jQuery for new projects?

Should I use prototype.js or jQuery for a new project? Rails comes with prototype.js but jQuery seems the library of choice for the rest of the world. Is prototype.js still under active development? ...
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5answers
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What's the best way to load Javascript into a page to optimize performance?

Is there a way to load my JavaScript into a page that will make it load faster?
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2answers
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What are the differences between Firefox's Javascript engine and Chrome's V8?

I've noticed that Chrome and Firefox take different amounts of time to render certain things. In general, Chrome has been faster. What should I know about both of them (and IE8/9, too, I guess) when ...
21
votes
4answers
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Why insert static files (CSS, images, JavaScript, ECC) in a subdomain?

Why so many big and little sites inserts static files (CSS, images, JavaScript, ECC) in a subdomain like media.example.com or s2.static.example.com? What are the advantages? Why not just a directory ...
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votes
2answers
83 views

Browser privacy improvement implications for websites

On https://panopticlick.eff.org/ EFF let you test the number of uniquely identifying bits that the browser gives a website. Among these are HTTP header fields such as User-Agent, Accept, ...