Limits of the storage and how to ask for more

So far we have seen several different ways to have storage and access it at the client side. All these ways gives us the option to store large amounts of data at the client side. The question arises how come there are no hacks out there that fills up the storage of all the devices?

We will see why this is not happening everywhere, at least not without some browser vulnerability. To do this, we shall create a simple case where we will store data to the browser using localStorage, as long as we are allowed by the user agent.

How to do it...

1. We can start by creating a file called example.js, there we will generate data with size of 1 k and size of 100 k. The data for 1k can be generated by creating an array of 1025 elements, which we will join with the letter "a", resulting in 1024 character string of "a"'S:

   var testing = (function (me) {
   me.data1k =  new Array(1025).join("a"); // about 1k
   me.data100k = new Array((1024*100)+1).join("b");// about 100k...