Run results for: typeof repetition vs array grouping

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.101 Safari/537.36

Browser: Chrome 53

Operating system: Mac OS X 10.11.6

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
typeof test	2407778.0 Ops/sec
array group test	1050270.0 Ops/sec

Tests:

typeof test
typeof B === 'undefined' || typeof C === 'undefined'
array group test
[typeof B, typeof C].every(function(elem) { return elem === 'undefined' });