Run results for: Array.some() vs Array.map().includes()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:145.0) Gecko/20100101 Firefox/145.0

Browser: Firefox 145

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

Array.some()

2162.2M/s

Array.map().includes()

123.0M/s

View exact numbers

Test name	Executions per second
✓ Array.some()	2,162,225,920 Ops/sec
Array.map().includes()	123,006,664 Ops/sec

HTML Preparation code:

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

Script Preparation code:

const arrayLength = 50;
const randomIndexForIdToFind = Math.random() * (arrayLength - 1) + 1;
const idToFind = 'foo';

const arr = [];

for (let i = 0; i < arrLength ; i++) {
  if (i === randomIndexForIdToFind) {
    arr.push({ foo: { id: idToFind }});
  } else {
    arr.push({ foo: { id: 'bar' }});
  }
}

Tests:

Array.map().includes()
arr.map(e => e.foo.id).includes(idToFind);
Array.some()
arr.some(e => e.foo.id === idToFind);