Array class as new module in Node JS

Question

Array class as new module in Node JS

I need to add some prototype to Array class,in native javascript I can do following

 var myArray = Array;
 myArray.prototype.myMethod = function(){}
 var testArray = new myArray();
 testArray.contains();

but now I need to do this by node js module and exports myArray as class so can make some object from it,how can I do this?

javascript
node.js
module

Answer 1

If you add to the Array prototype directly from within a module, it'll be accessible to the Array in the main scope

To see this, put the following line in foo.js:

Array.prototype.foo = "bar";

Then fire up the repl and run

$ node
> Array.prototype.foo
undefined // <-- Array normally doesn't have foo
> require('./foo')
{}
> Array.prototype.foo
'bar' // <-- note how it's defined now
> [].foo
'bar' // <-- as expected

You can do the same thing with other basic objects like Number