Run results for: Compare Object.keys and Object.entries with array v2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object.keys	195468.2 Ops/sec
Object.entries	69006.3 Ops/sec
Object.entries with map	62484.1 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

function makeid() {
    var text = "";
    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

    for (var i = 0; i < 5; i++)
        text += possible.charAt(Math.floor(Math.random() * possible.length));

    return text;
}

window.parentObj = {};

for (let i = 0; i < 100; i++) {
    window.parentObj[makeid()] = makeid();
}

Tests:

Object.keys
const array = []; const keys = Object.keys(window.parentObj); for (const k of keys) { array.push(window.parentObj[k]); }
Object.entries
const array = []; const entries = Object.entries(window.parentObj); for (const [k, v] of entries) { array.push(v); }
Object.entries with map
const array = Object.entries(window.parentObj).map(([k, v]) => v);

Run results for: Compare Object.keys and Object.entries with array v2

Object.keys

Object.entries

Object.entries with map