Javascript tips & tricks

• Coll way to join strings:

var base = 'http://acme.com',
    action = 'get',
    param = 'apple';
var fullUrl = [base,action,param].join('');
alert(fullUrl);

• Closure ?

http://stackoverflow.com/questions/111102/how-do-javascript-closures-work

• Private & public members in JSON

var myWidget = function(){  

      //private method declaration

    var myShow;

    //private method body

    myShow = function(){ return "I'm private!"; }

    //public method declaration

    this.Show = function Show() { alert(["I'm calling ->",myShow()].join('')); }

    //this.Show = function Show() { alert('xx'); }

}

var coolWidget = new myWidget();

//this works

coolWidget.Show();

//this does not works. It's private member!

coolWidget.myShow();

•  Use Console.Log() for quick debugging instead of annoying alert