How to use prototype in javascript?

[sunilmkt]

As we know Prototypes allow us to easily define methods to all instances of a particular object and method is applied to the prototype, so it is only stored in the memory once. we can define prototype in many ways.

So I want to ask which methods is more suitable if we define prototype in header or any other place.
Does prototype defining methods depends upon our need & requirement?.

 

[aceO07]

Prototype hasn't been updated for over a year. If possible, give jQuery a try. It does the same stuff and more, but it's easier and more common.

 

[beginner99]

Prototype hasn't been updated for over a year. If possible, give jQuery a try. It does the same stuff and more, but it's easier and more common.

he meant a JavaScript prototype in general and not the Prototype lib.

 

[Jaydip]

You should use prototypes only when you wish to declare a "non-static" method of the object.

var Test= function () {  };  
Test.prototype.getx = function (){   alert("x"); };  
Test.gety = function (){   alert("y"); }; 
 Test.gety();  // Correct  
Test.getx();  // Incorrect  
var Jay= new Test(); 
Jay.getx();  // Correct

 

[nickbits]

I use prototype for the String class to add helpful methods like trim(). That's about it.

 

[Leros]

You should use prototypes only when you wish to declare a "non-static" method of the object.

var Test= function () {  };  
Test.prototype.getx = function (){   alert("x"); };  
Test.gety = function (){   alert("y"); }; 
 Test.gety();  // Correct  
Test.getx();  // Incorrect  
var Jay= new Test(); 
Jay.getx();  // Correct

Pretty much this.

A good majority of the JS I work with is object oriented, so I use prototypes quite a bit.