JavaScript operator for "within x of"

Question

is there a JavaScript operator that will check proximity, kind of like a soft equals? For example, instead of if (a == b) it would read if (a is within 5 of b). There is probably no such thing but it would be a big help if there was. thank you

Answer 1

There's no built-in way to do this, but you can easily accomplish the same with this:

if ( Math.abs(a - b) <= 5 )

Answer 2

nope, there's no such operator.

FYI, all operators can be found at https://developer.mozilla.org/en/JavaScript/Reference/Operators

Answer 3

function isNearby(a, b, delta) {
   return Math.abs(a - b) <= delta;
}