How to Save a file at client side using JavaScript?

Question

I want to save a JSON object to a file at client to persist it for future usage, I have tried following line

window.open(\"data:text/json;charset=utf-8,\" + es

Answer 1

FileSystem APIs is part of HTML5 spec and it is possible to access file system in a sandbox for a certain website in modern browsers, here is a good tutorial: http://www.html5rocks.com/en/tutorials/file/filesystem/

However I would go with LocalStorage API for that matter which has better browser support: http://www.w3schools.com/html5/html5_webstorage.asp