Exclude debug JavaScript code during minification

Question

I\'m looking into different ways to minify my JavaScript code including the regular JSMin, Packer, and YUI solutions. I\'m really interested in the new Google Closure Compil

Answer 1

I haven't looked into minification so far, but this behaviour could be accomplished using a simple regular expression:

s/;;;.*//g

This replaces everything in a line after (and including) three semicolons with nothing, so it's discarded before minifying. You can run sed (or a similar tool) before running your minification tool, like this:

sed 's/;;;.*//g' < infile.js > outfile.js

BTW, if you're wondering whether the packed version or the minified version will be 'better', read this comparison of JavaScript compression methods.