Benchmark: Map vs Object 5000 rand

Script Preparation code:

var map = new Map();
var obj = {};
function getRandomInt(max) {
  return Math.floor(Math.random() * max);
}   
for(let i = 0 ; i < 5000 ; i++){
  const randomNm = getRandomInt(10000);
  map.set(randomNm, randomNm);
  obj[randomNm] = randomNm;
}

var i = 0, count = 1000, a;

Tests:

Map lookup
for(let i = 0 ; i < 5000 ; i++){ const randomNm = getRandomInt(10000); a = map.get(randomNm); }
Obj lookup
for(let i = 0 ; i < 5000 ; i++){ const randomNm = getRandomInt(10000); a = obj[randomNm]; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Map lookup
Obj lookup

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 18 on iOS 18.1

View result in a separate tab

Test name	Executions per second
Map lookup	1020.2 Ops/sec
Obj lookup	1041.9 Ops/sec

Related benchmarks:

Map vs Object 5000 rand (version: 0)

Lookup of map vs object

Comparing performance of: Map lookup vs Obj lookup

Created: 4 years ago by: Guest

Jump to the latest result

Map lookup

Obj lookup

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A