jQuery background

Before starting learning jQuery, it's helpful to know some following javascript tricks,

Anonymous Functionsg

• Anonymous functions are nameless function (function having no name).

•  Anonymous functions are executed as soon as they are downloaded by browser (if they are not within another function).
• They are in 2 types.

 First type, 

(function(){
  //some cool js stuff here.
});

Second type (with passing arguments),

(function(args){
  //some cool js stuff here.
})(args); 

//Above last line will pass args. This looks odd having args 2 times. But learning this way is helpful.

Eg. 

(function(args){
  alert(args);
})("hi"); 

 Above function will alert hi

Other interesting stuff of anonymous functions in javascript,

We can pass anonymous function as argument, like we pass int, string, etc.

Eg,

function acceptAnonymousFunction(annonymousFunc) {
    // some code here
    annonymousFunc('javascript!');
}

acceptAnonymousFunction(function(arg) {
    alert('Hello '+ arg);
}); 
// alerts 'Hello javascript!'  

Got it! If not re-read it carefully, you will understand it. 

Assigning javascript function as variable,

var myfunc = function(args) 
{                     
  //functionality of myfunc here
}

myfunc(args); // this is calling of myfunc

 
Above code will do exactly same as,

function myfunc(args){

  //functionality of myfunc goes here

} 

More interesting stuff...coming soon!!Keep reading.