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5 JavaScript code compression tools recommended_javascript skills

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May 16, 2016 pm 04:42 PM

Recommend 5 excellent JavaScript code compression tools. Code compression (also known as code minimization) is a process of eliminating all unnecessary characters from source code, including removing all unnecessary space characters, new line characters, comments, etc. Code compression does not affect the functionality of the source code, but it improves load times (and web application performance) because the size of the file to be downloaded is reduced.

The following are 5 excellent JavaScript code compression tools. I believe they can make your scripts lighter and your code performance better.

1. YUI Compressor

Produced by Yahoo! YUI Compressor is a command line tool written in Java that helps you minimize JavaScript files. Very secure and has a higher compression ratio than other tools. Not only that, YUI Compressor can also compress CSS files.

2. Google Closure Compiler

Google Closure Compiler is a tool that makes JavaScript download and run faster. This is a pretty good JavaScript compiler. Replacing source language with machine language allows you to compile better JavaScript within JavaScript. You can use it to parse JavaScript, analyze and remove useless code, rewrite and compress remaining code, and more. It can also check syntax, variable references and types, and provide prompts for common JavaScript errors.

3. JSMin

JSMin can remove comments and unnecessary spaces from JavaScript files, which can often reduce the size by half, making downloads faster. It also encourages a more expressive programming style.

4. Packer

Packer is also a popular JavaScript compression tool that can automatically create a compressed version of the code. You just need to paste and click the "Pack" button. It can achieve high compression and add advanced dynamic compression when run with JavaScript.

5. Dojo ShrinkSafe

ShrinkSafe is also a commonly used JavaScript code compression tool. Depending on your programming style, it can reduce the size of your script by a third or more. Best of all, ShrinkSafe never changes public variables or APIs, meaning you can put a minified version of JavaScript into your pages without changing the code that uses it.

Bonus Tools

Test which compression tool is more suitable for you, eliminating the trouble of installing various tools for testing.

Due to different applications, in many cases, it may be difficult to find a JavaScript code compression tool that suits you. Now I recommend a tool to you. You can detect which tool is suitable for you without installing all compression tools.

Try it: The JavaScript CompressorRater

Note: This tool mainly targets JSMin, Dojo ShrinkSafe, YUI Compressor and Packer

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