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

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36

Browser: Chrome 60

Operating system: Windows 7

Device Platform: Other

Date tested: 7 years ago

Tests:

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