String Smash

What it does: Compresses a string so that it can be embedded as a variable in JavaScript.

Sometimes you need to embed really long strings in JavaScript. Ok, rarely. But say you embed some css in JavaScript and the strings repeat a lot. What if you could use JavaScript variables to reduce the repitition? You could save KB in downloads. This is a quick proof of concept.

Before:

var css = 'superlongword superlongword superlongword superlongword superlongword superlongword superlongword';

End Result:

var css = (function(){var a='superlongword';return [a,' ',a,' ',a,' ',a,' ',a,' ',a,' ',a].join('');})();

Whoo hoo! We saved 5 characters! OK not much compression, but longer strings yield better results.

Usage:

var css = 'superlongword superlongword superlongword superlongword superlongword superlongword superlongword';
var result = smashjs(css);

console.log(result);       // logs: (function(){var a='superlongword...
console.log(eval(result)); // logs: superlongword superlongword supe...