Run results for: sdfsf22drl Delete vs set undefined

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser: Chrome 87

Operating system: Mac OS X 11.1.0

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Delete	4875.5 Ops/sec
Set undefined	3109.3 Ops/sec

Script Preparation code:

var obj = {};
for (let i = 0; i < 999; i++) {
  obj[`a_${i}`] = i;
}

Tests: