RevealingModulePattern.js

var myRevealingModule = (function () {
    var privateVar = "Ben Cherry";
    var publicVar = "Hey there!";

    function privateFunction() {
        console.log( "Name:" + privateVar );
    }

    function publicSetName( strName ) {
        privateVar = strName;
    }

    function publicGetName() {
        privateFunction();
    }

    return {
        setName: publicSetName,
        greeting: publicVar,
        getName: publicGetName
    };
})();

myRevealingModule.setName( "Paul Kinlan" );