How can I create a file for storage on the client side with JavaScript?

Question

I need to create a temporary file to store user settings on the client side. Is it possible to create a simple log file using JavaScript?

Answer 1

You can't create file on fly to the client side as there are Security restrictions

but i found a nice article on file by JavaScript have a look http://www.nczonline.net/blog/2012/05/31/working-with-files-in-javascript-part-4-object-urls/