Bits And Pix

// get the input element
var $fileElement = $("input[type='file']");
var $image = $("img:first");

// on change
$fileElement.on("change",function(){
   if (this.files && this.files.length > 0){
       var file = this.files[0];
       var reader = new FileReader();
       reader.onload = function(e) {
	   $img.attr("src", e.target.result);
       }
       reader.readAsDataURL(file);
   }
});

// do this one per file
var myModule = myModule || {}

// Do an "scoping function" once per Component
(function($){

  // some privates members here

  // --------- myModule.MyComponent Constructor --------- //
  myModule.MyComponent = function MyComponent(arg1,argN){

    // little trick allowing to instanciate any of the two following ways:`
    //   1) var comp = new myModule.MyComponent(..)
    //   2) var comp = myModule.MyComponent(..)
    if (!(this instanceof MyComponent)) {
    	return new MyComponent(arg1,argN);
    }
  }
  // --------- /myModule.MyComponent Constructor --------- //

  // --------- Public Methods --------- //
  myModule.MyComponent.prototype.publicMethodA = function(){
     // some stuff
  }
  // --------- /Public Methods --------- //

  //private methods here
  function privateMethodB(){

  }
})(jQuery);

// a is the array to be sorted
function(a,propName){
		return a.sort(sortByFunc);
		function sortByFunc(a, b) {
			if (typeof a === "undefined") return -1;
			if (typeof b === "undefined") return 1;

		    var x = a[propName];
		    var y = b[propName];
		    return ((x < y) ? -1 : ((x > y) ? 1 : 0));
		}
}

function hello() {
    var args = Array.prototype.slice.call(arguments);
    myOtherFunction.apply(this,args);

}

jQuery.aop.before( {target: String, method: 'replace'},
  function(regex, newString) {
    alert("About to replace string '" + this +
           "' with '" + newString + "' using regEx '" + regex + "'");
  }
);

jQuery.aop.around( {target: String, method: 'indexOf'},
  function(invocation) {
    alert('Searching: ' + invocation.arguments[0] + ' on: ' + this);
    return invocation.proceed();
  }
);

var myData = new Array();
myData[0] = {FirstName:"John", LastName:"Doe", Age:40};
myData[1] = {FirstName:"Fred", LastName:"Smith", Age:41};

function sortByFirstName(a, b) {
    var x = a.FirstName.toLowerCase();
    var y = b.FirstName.toLowerCase();
    return ((x < y) ? -1 : ((x > y) ? 1 : 0));
}

myData.sort(sortByFirstName);

var MockUserDao = (function(){

    var somePrivateStuff = null;

	// Object function
	function MockUserDao(){};

	// ------ DAO Interface ------ //
	MockUserDao.prototype.getUser = function(objType,id){
	  somePrivateFunction();
	  ....
	}

	....
	// ------ /DAO Interface ------ //

	// ------ Privates ------- //
	function somePrivateFunction(){
	....
	}
	// ------ Privates ------- //	

	return MockUserDao;
})());

snow.dm.registerDao("user",new MockUserDao());

"test 2".match(/./g)

["t", "e", "s", "t", " ","2"]

var jsonString = JSON.stringify({name:"Mike",age:22});
//jsonString = '{"name":"Mike","age":22}'

var jsObject = JSON.parse('{"name":"Mike","age":22}');

var mikeInfo = JSON.stringify({name:"Mike",age:12});
localStorage.setItem("mikeInfo",mikeInfo);