Example: Small Javascript library

In jQuery you can call a function like $.ajax() and insert an object inside of it and each property does an action. Below I have simplified an example to demonstrate how this works.

    //create the library 
    var lib = {
        sum: function(num){     //create a method
            var num1 = num.a;   
            var num2 = num.b;
            this.result = num1 + num2; 
        },
        table: 'table'      //this is a random property, its not necessary 
    }
    
    //call a method and create an object inside of it to send data to the library
    lib.sum({ 
        a : 1,  //these are the properties that will be processed
        b : 4
    });
    alert(lib.result); //output 5
    
    
    
    //above is similar to the jQuery AJAX below
     $("#input").keyup(function(){  
        var data = $('#input').val();  
        $.ajax({  
            url:"models/post.php",  //these are the properties that will be processed
            type: "post",  
            data: ({name:data, age:'15'}),  
            success:function(result){$(".result").html(result);}  
        });  
    });  

jQuery Deconstructed is a rather nice way to look through the source. You will learn alot by studying it.