javascript self executing function code example

Example 1: self invoked function javascript

(function(){
    //Bunch of code...
})();

Example 2: call a self executing function javascript

var foo = (function bar() {
   alert('hello');
   return bar;
})();   // hello

foo();  // hello

Example 3: javascript run self exectutin object

(function (parameters) {
    // Function body
})(parameters);