Tiny, fast javascript with Google Closure-Compiler
I’ve just spent a few hours trying to clean up the javascript on a project that’s about to launch, and I’m really impressed with Google’s Closure-compiler, it’s available online, as a Rest API or as a java app. I’ve been running it on my machine, with a shell script to batch the compilation of .js files.
It not a ‘real’ compiler, it doesn’t produce machine code, but it not only shortens your code, such as variable names etc, it also optimises it, to make it more efficient.
1 2 3 4 5 6 | //before closure compiler var settings = { maxZoom: 6, gridSize: 65, styles: clusterStyles }; if( !!markerClusterer ) markerClusterer = null; markerClusterer = new MarkerClusterer( map, markers, settings ); // after j&&(j=null);j=new MarkerClusterer(map, markers, { maxZoom: 6, gridSize: 65, styles: clusterStyles } ); |