Recursive require

require_these.js

/* override require for testing, comment it out */
var require = function (what, cb) {
	console.log('request: ' + what.join(', '));
	setTimeout(function () {
		require.ready(cb);
	}, 300);
};
require.ready = function (cb) {
    cb();
};


var recursiveRequire = function (these, callback) {
	var items = [], cb, i, thl, e;
	for (i = 0, thl = these.length; i < thl; i += 1) {
		e = these[i];
		if (typeof e === 'string') {
			items.push(e);
		}
	}
	// lazy isArray
	// remember, e is the last item of the these array
	if (typeof e === 'object' && typeof e.length === 'number') {
		// if last item is an array, call the recursiveRequire function again
		// and pass that array as the first argument
		cb = function () {
			recursiveRequire(e, callback);
		};
	} else {
		// if e wasn't an array, we reached the last item, so call the callback
		cb = callback;
	}
	require(items, cb);
};
/*
required modules,
if the last item in the array is another array
then it will be downlaoded recursively
*/
var g = [
	'amodule',
	'bmodule',
	[
		'cmodule',
		'dmodule',
		[
			'emodule',
			'fmodule'
		]
	]
];
// start test
recursiveRequire(g, function () {
	console.log('requested all');
});