Tricks for getting path to current JS Script

js_filepath_tricks.js

// in a <script src="foo"> tag.
(function(){
    var scripts = document.getElementsByTagName('script');
    for (var i = 0; i < scripts.length; i++){
        console.log(i, scripts[i].src);
    }
    var thisScript = scripts[scripts.length-1].src;
    console.log("thisScript is: ", thisScript);
})();

// in require.js module.
console.log(require.toUrl('.'));