Minify JavaScript

Minifying or condensing JavaScript code can help browsers avoid using too much data during functions such as downloading or execution time. The same can be said for HTML files and CSS files.

Minified code removes needless or overlapping data such as code comments or formatting, deleting unused code, unnecessary characters like white space, using briefer function and variable naming mechanisms.

Ways to minify JS

Tools to minify JS files inlcude UglifyJS and the Closure Compiler, which Google rates as "very effective."