Run results for: Testing for false vs === undefined vs hasOwnProperty for undefined member

Run details:

User agent: Mozilla/5.0 (Linux; Android 7.0; SM-G950U Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.116 Mobile Safari/537.36

Browser: Chrome Mobile 60

Operating system: Android 7.0

Device Platform: Samsung SM-G950U

Date tested: 6 years ago

Tests:

test truth
var n = {}; while(true) { if(!n.foo) break; }
test undefined
var n = {}; while(true) { if(n.foo===undefined) break; }
test hasOwnProperty
var n = {}; while(true) { if(!n.hasOwnProperty('foo')) break; }