Benchmark: Array-Map + Set.has vs Array.Find

Script Preparation code:

var a = [
  {id: 1, name: "1"},
  {id: 2, name: "1"},
  {id: 3, name: "1"},
  {id: 4, name: "1"},
  {id: 5, name: "1"},
  {id: 6, name: "1"},
  {id: 7, name: "1"},
  {id: 8, name: "1"},
  {id: 9, name: "1"},
  {id: 10, name: "1"},
];

Tests:

Find
return a.find(n => n === 9);
Map + Set
var b = new Set(a.map(item => item.id)); return b.has(9);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Find
Map + Set

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36

Browser/OS: Chrome 136 on Mac OS X 10.15.7

View result in a separate tab

Find

31.6M/s

Map + Set

1.8M/s

View exact numbers

Test name	Executions per second
✓ Find	31,634,966 Ops/sec
Map + Set	1,786,536 Ops/sec

Array-Map + Set.has vs Array.Find (version: 1)

Comparing performance of: `Find vs Map + Set`

Created: one year ago by: Guest

Go to the latest result

Find

Map + Set

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Array-Map + Set.has vs Array.Find (version: 1)

Comparing performance of: Find vs Map + Set

Created: one year ago by: Guest

Go to the latest result

Find

Map + Set

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Find vs Map + Set`