Run results for: set.has vs. Object key lookup 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser: Chrome 129

Operating system: Windows

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
includes	30796798.0 Ops/sec
key lookup	30217760.0 Ops/sec

Script Preparation code:

var a = new Set([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
var b = {1: true, 2: true, 3: true, 4: true, 5: true, 6: true, 7: true, 8: true, 9: true, 10: true}

Tests:

includes
return a.has(9)
key lookup
return !!b['9']

Run results for: set.has vs. Object key lookup 2

includes

key lookup