Easy to read amd/commonjs/window export

export.js

var MyModule = {};

    // AMD support
    if (typeof define === 'function' && define.amd) {
        define(function () { return  MyModule});
    // CommonJS and Node.js module support.
    } else if (typeof exports !== 'undefined') {
        // Support Node.js specific `module.exports` (which can be a function)
        if (typeof module !== 'undefined' && module.exports) {
            exports = module.exports = MyModule;
        }
        // But always support CommonJS module 1.1.1 spec (`exports` cannot be a function)
        exports.MyModule = MyModule;
    } else {
        window.MyModule = MyModule;
    }