zlacker

> In this instance, the author definitely got lucky that they were working at Google where 1) there were enough users to generate this Heisenbug consistently and 2) that they had direct access to Chrome devs.

I'm not sure this is really luck.

The fix is to just not use Math.abs. If they didn't work at Google they still would've done the same debugging and used the same fix. Working at Google probably harmed them as once they discovered Math.abs didn't work correctly they could've just immediately used `> 0` instead of asking the chrome team about it.

There's nothing lucky about slowly adding printf statements until you understand what the computer is actually doing; that's just good work.