javascript - How can I handle numbers bigger than 17-digits in Firefox/IE7?

Question

For a web application I want to be able to handle numbers up to 64 bits in size. During testing, I found that javascript (or the browser as a whole) seems to handle as much as 17 digits. A 64-bit number has a maximum of 20 digits, but after the javascript has handled the number, the least significant 3 digits are rounded and set to 0.... Any ideas where this comes from? More importantly, any idea how to work around it?

Answer 1

I think you need to treat them as strings if you have reached Javascript limit (see here)