Run results for: Object hasOwnProperty vs Set has

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0

Browser: Firefox 132

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object Lookup	2192506880.0 Ops/sec
Set Lookup	2186672640.0 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