Contained Javascript Library template

This Javascript template enables a library to be written in its own namespace and handle being included multiple times on a page.
It's based on Douglas Crockford's json2.js library.


var MyLibrary;
if (!MyLibrary) {
    MyLibrary = {};
}


(function () {
    //'use strict';
    if (typeof MyLibrary.myFunction !== 'function') {
        MyLibrary.myFunction = function (arg1, arg2) {
          //...method body here...
          return true;
        };
    }
}());