Node.js code snippet - dynamically load all javascript in a folder

Sometimes I need to dynamically load all javascript files contained in a folder - here's a handy code snippet that does it - this function will dynamically load all js files in a folder then calls a callback asynchronously, and return synchronously, an array with all js files it has loaded.

var requireDir = function(dir, callback) {
 var aret = Array();
 fs.readdirSync(dir).forEach(function (library) {
 var isLibrary = library.split(".").length > 0 && library.split(".")[1] === 'js',
 libName = library.split(".")[0].toLowerCase();
 if (isLibrary) {
 aret[libName] = require(path.join(dir, library));
 }
 });
 if(callback) process.nextTick(function() {
 callback(null, aret);
 });
 return aret;
}

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