Run results for: Object hasOwnProperty vs Set has

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object Lookup	86618800.0 Ops/sec
Set Lookup	142918784.0 Ops/sec

Script Preparation code:

var data = [];
for (let i = 0; i < 5000; i += 1) {
    data.push(i.toString());
}
var obj = data.reduce((p, c) => {
    p[c] = true;
    return p;
}, {});

var set = new Set(data);

Tests:

Object Lookup
obj.hasOwnProperty('123')
Set Lookup
set.has('123')

Run results for: Object hasOwnProperty vs Set has

Object Lookup

Set Lookup