Lazy load JavaScript files

lazy-load-files.js

/* This is a technique to lazy load your javascript files
 * Handy for those pesky slow, load blocking off-site scripts
 * function lazyLoad
 * @s: String of path to file
 */

function lazyLoad(s) {
    var d = window.document;
        b = d.body; /* appends at end of body, but you could use other methods to put where you want */
        e = d.createElement("script");
    
    e.async = true;
    e.src = s;
    b.appendChild(e);
}

/* Then when document is loaded and ready (this example assumes jQuery)
$(function() {
    lazyload("path/to/script");
});