Run results for: checking for key

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 OPR/89.0.4447.64 (Edition GX-CN)

Browser: Opera 89

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
js in	203717.0 Ops/sec
js property	200529.0 Ops/sec
ramda has	171193.5 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.26.1/ramda.min.js"></script>

Script Preparation code:

var test = {
  hi: null,
  hello: undefined,
  goodbye: 1,
}

Tests:

js in
if ('hi' in test) console.log('yes')
js property
if (test.hasOwnProperty('hi')) console.log('yes')
ramda has
if (R.has('hi', test)) console.log('yes')

Run results for: checking for key

js in

js property

ramda has