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: 11 months 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

Test name	Executions per second
Find	31634966.0 Ops/sec
Map + Set	1786536.4 Ops/sec

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object key vs indexof
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find vs some vs every
find vs some vs every forkedyo
Associative object array VS array.find
set.has vs. array.includes 1e5
find vs some vs every vs for (break) vs for (return)
Test_every_2
Array-Map + Set.has vs Array.Find 2

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

Comparing performance of: Find vs Map + Set

Created: 11 months ago by: Guest

Jump to the latest result

Find

Map + Set

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A