Run results for: set.has vs. object in

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36 Edg/112.0.1722.34

Browser: Chrome 112

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
in object	160749.4 Ops/sec
lookup	139508.6 Ops/sec

Script Preparation code:

var a = {1 : true, 4: true, 6: true, 9: true, 14: true};
var b = new Set(Object.keys(a));

Tests: