What is the best method to convert floating point to an integer in JavaScript?

Question

There are several different methods for converting floating point numbers to Integers in JavaScript. My question is what method gives the best performance, is most compatibl

Answer 1

Apparently double bitwise-not is the fastest way to floor a number:

var x = 2.5;
console.log(~~x); // 2

Used to be an article here, getting a 404 now though: http://james.padolsey.com/javascript/double-bitwise-not/

Google has it cached: http://74.125.155.132/search?q=cache:wpZnhsbJGt0J:james.padolsey.com/javascript/double-bitwise-not/+double+bitwise+not&cd=1&hl=en&ct=clnk&gl=us

But the Wayback Machine saves the day! http://web.archive.org/web/20100422040551/http://james.padolsey.com/javascript/double-bitwise-not/