undefined vs local undefined var (v3)

Revision 3 of this benchmark created on

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Testing in
TestOps/sec
global undefined
var stuff = 1;

if (stuff === undefined) {
  stuff += stuff; // never reached
}
ready
local undefined var
var stuff = 1, undefined;

if (stuff === undefined) {
  stuff += stuff; // never reached
}
ready
void 0
var stuff = 1;

if (stuff === void 0) {
  stuff += stuff; // never reached
}
ready
typeof
var stuff = 1;

if (typeof stuff === "undefined") {
  stuff += stuff; // never reached
}
ready

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