Benchmark: hasOwnProperty vs NO-hasOwnProperty vs object.keys 2

HTML Preparation code:

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

Script Preparation code:

let obj = {
  'a': 1,
  'b': 1,
  'c': 1,
  'd': 1,
  'e': 1,
  'f': 1,
  'g': 1
};

Tests:

hasOwnProperty
let data = []; for (let key in obj) { if(obj.hasOwnProperty(key)) { data.push(key); } }
NO-hasOwnProperty
let data = []; for (let key in obj) { data.push(key); }
Object.keys
let data = Object.keys(obj);

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 18 on iOS 18.2.1

Object.keys

441.8M/s

NO-hasOwnProperty

37.8M/s

hasOwnProperty

35.6M/s

View exact numbers

hasOwnProperty vs NO-hasOwnProperty vs object.keys 2 (version: 1)