How to structure javascript callback so that function scope is maintained properly

Question

I\'m using XMLHttpRequest, and I want to access a local variable in the success callback function.

Here is the code:

function getFileContents(filePat         


        

Answer 1

I ran into a similar problem. My code looked like this:

for (var i=0; i

The solution is to replace "xmlHttp" with "this" so the inner function is referring to the correct instance of the request object every time the callback is called.