Run results for: for in / object.keys test

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; M2102J20SG) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.5481.192 Mobile Safari/537.36 OPR/74.1.3922.71199

Browser: Opera Mobile 74

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
for in	0.6 Ops/sec
object.keys	0.6 Ops/sec

Script Preparation code:

var obj = {};
for(let i = 0; i < 100000; i++) {
  obj[i] = i;
};

Tests:

for in
for (var key in obj) { console.log(key); }
object.keys
Object.keys(obj).forEach(key => console.log(key));