one of the things in James M Snell's TypedArrays presentations is a compare method for TypedArrays. This in theory subsumes a equals method, but in practice equals can be implemented as a memcmp (as long as you don't care about NaN / -0) and compare cannot (except for uint8; for other types the ordering considered as a byte sequence is not the same as the ordering as int32 or whatever)

is it likely engines could optimize Int32Array.compare(a, b) === 0 to do a memcmp? if not, how would people feel about having an equals method also?