== (negated: !=)

When using two equals signs for JavaScript equality testing, some funky conversions take place.

=== (negated: !==)

When using three equals signs for JavaScript equality testing, everything is as is. Nothing gets converted before being evaluated.

A standard IF statement. If(value) {/*- green -*/} else { /*- white -*/ }

Note: This row does not match up with any of the rows in the other table.

Moral of the story:

Always use 3 equals unless you have a good reason to use 2.