Run results for: Array ForEach vs Find vs for loop

Run details:

User agent: Mozilla/5.0 (Linux; Android 9) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.131 Mobile DuckDuckGo/5 Safari/537.36

Browser: Chrome Mobile 92

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Script Preparation code:

var arr = [];
for (var i = 0; i < 10000; i++) {
  arr[i] = i;
}
var needToFindThis = Math.floor((Math.random() * 10000) + 1);

Tests:

ForEach
var indexFound = -1; arr.forEach((item, index) => { if (item === needToFindThis) { indexFound = index; } });
Find
var indexFound = arr.find((item, index) => { if (item === needToFindThis) { return index; } });
For
var indexFound = -1; for (var i = 0; i < arr.length; i++) { if (arr[i] === needToFindThis) { indexFound = i; } }