Run results for: key exists: key in object vs !!object[key] vs object[key]

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.0.0; SM-G950U1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.80 Mobile Safari/537.36

Browser: Chrome Mobile 70

Operating system: Android 8.0.0

Device Platform: Mobile

Date tested: 5 years ago

Script Preparation code:

testObject = {'asdf': 'apple', 'afwefg': 'pear', 'hohoo': 'santa', 'country': 'usa', 'bottle': 'gin'};

Tests: