Run results for: object key vs array find

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser: Chrome 129

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
object key	15930167.0 Ops/sec
array find	300.2 Ops/sec

Script Preparation code:

var itemKey = 100;

var objContainer = {};
var arrContainer = [];

for (let i = 1; i <= 100000; i++) {
  objContainer[i.toString()] = i;
  arrContainer.push(i);
}

Tests:

object key
objContainer[itemKey];
array find
arrContainer.find(containerItem => containerItem === itemKey);