I know all internal jQuery functions are written in JavaScript, so it should technically be possible to just evaluate jQuery to JavaScript.

I have a snippet of JavaScript that uses jQuery that I need to use in an environment where jQuery isn't available. I know I could translate it by hand, but it is quite a lot of code. Is there a tool out that that does this?

Just to make it clear: with a lot of effort I could probably get jQuery in the environment but I would like to have a solution that is a bit more resource friendly. If there is no tool like this I'll just try to translate the code by hand, I was just wondering whether there was such a tool.

I know all internal jQuery functions are written in JavaScript, so it should technically be possible to just evaluate jQuery to JavaScript.

I have a snippet of JavaScript that uses jQuery that I need to use in an environment where jQuery isn't available. I know I could translate it by hand, but it is quite a lot of code. Is there a tool out that that does this?

Just to make it clear: with a lot of effort I could probably get jQuery in the environment but I would like to have a solution that is a bit more resource friendly. If there is no tool like this I'll just try to translate the code by hand, I was just wondering whether there was such a tool.

• javascript
• jquery

• 3 jQuery is JavaScript. There is no border to cross here. I would think it is impossible to extract "just the necessary parts" from it, you should focus on getting jQuery into your environment, if you need it. – Tomalak Commented Jan 25, 2012 at 22:09
• 2 I know jQuery is built up from JavaScript. I'm not saying I would like to extract some parts of jQuery. Say I have $(".classname"). This would be roughly equivalent to document.getElementsByClassName("classname"). I was just asking if there is a tool that does this kind of stuff programmatically. – Tim van Dalen Commented Jan 25, 2012 at 22:31
• No, there isn't. Everything in jQuery depends on everything in jQuery. While there might be easy substitutes for easy cases, even with your simple example there is a problem: not every browser supports getElementsByClassName(), but every browser jQuery runs on supports $(".classname"). – Tomalak Commented Jan 25, 2012 at 22:38
• 1 Okay, I was just wondering if there was a tool that helped with replacing jQuery statements with the actual underlying code. I take it there is no such tool. – Tim van Dalen Commented Jan 25, 2012 at 22:46
• 3 This is a reasonable question. I was also looking for a transcompiler hoping to map jQuery to native inline JavaScript for various reasons. – Pete Alvin Commented Mar 17, 2014 at 11:53

1 Answer 1

Google's Closure Compiler's advanced optimization compresses your code to only include parts that are necessary, so the parts of jQuery that aren't used are stripped away.