JavaScript performance difference between double equals (==) and triple equals (===)

Question

In JavaScript, is there a performance difference between using a double equals (==) vs using a triple equals (===)?

Example: if (foo

Answer 1

Strict comparison (===) will always be slightly faster, but the difference is usually negligible.

It definitely makes sense to prefer === if you know for certain that you don't need type coercion in the comparison. It will always be at least as fast as ==.