3 ms·

So what if x > MAXNUMBER/2 ? Also, how can this be faster than x=0-x; ?

• infogulch 9y ago
  This took me a second to realize this is satire too.
• jwilk 9y ago
  It's a joke. And yeah, it gives wrong answers for some numbers. BTW, JS has unary minus, so you can write: x = -x
• IncRnd 9y ago
  I think the author chose a more efficient table-driven approach, due to the extra 0 in your 0-x expression.