Benchmark: Find in array - 004

Script Preparation code:

var size = 10000
var arr = []
for (let i = 0; i < size; i++) {
    arr.push(i)
}
var research = 6578;

Tests:

For i++ (const size)
const a_size = arr.length; var index = -1; for (let y = 0; y < a_size; y++) { if (research === arr[y]) { index = y; break; } }
For i++ (.length)
var index = -1; for (let y = 0; y < arr.length; y++) { if (research === arr[y]) { index = y; break; } }
For ... in
var index = -1; for (const y in arr) { if (research === arr[y]) { index = y; break; } }
for ... of
var index = -1; for (const el of arr) { if (research === el) { index = el; break; } }
indexOf
var index = arr.indexOf(research)
findIndex
var index = arr.findIndex(e => e === research)
Includes
var found = arr.includes(research)
Some ?
var found = arr.some(e => e === research)
forEach
var index = -1; arr.forEach((el, y) => { if (research === el) { index = y; return; } })
set has
const found = new Set(arr).has(research)

Rendered benchmark preparation results:

Previous results

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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/97.0.4692.71 Safari/537.36

Browser/OS: Chrome 97 on Mac OS X 10.15.7

Find in array - 004 (version: 0)