MooTools.define / MooTools.export

moo.js

(function(){
    
    var global = typeof exports == 'undefined' ? window : exports,
        old = {};
    
    var provide = MooTools.provide = function(key, value){
        old[key] = global[key];
        global[key] = value;
        return value;
    };

    MooTools.provides = function(fn){
        var provides = {};
        fn.call(provides);
        for (var i in provides) provide(i, provides[i]);
        return provides;
    };
    
    MooTools.export = function(export){
        if (!export) export = {};
        for (var key in old){
            export[key] = global[key];
            global[key] = old[key];
        }
        return export;
    };
    
})();

// Usage

   
   
(function(){

    var typeOf = MooTools.provide('typeOf', function(value){
        return 'array'; // jk
    });

})();

// or

MooTools.provides(function(){
    
    this.Type = function(){
        console.log('gotcha');
    };
    
});


console.log(typeOf('string'));

var myLib = {};
MooTools.export(myLib);

console.log(typeOf('string'));
console.log(myLib.typeOf('string'));


// In NodeJS
var moo = require('mootools');
new moo.Class();
moo.MooTools.export(global);
new Class();

I like. It's similar taste to: https://gist.github.com/980804#gistcomment-31549