Run results for: Test Loop Set Data2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0

Browser: Firefox 126

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
1	6788.7 Ops/sec
2	9708.7 Ops/sec

Script Preparation code:

var arr = new Array(15000);
arr.fill({ id: 0, text: "test" });
arr = arr.map((el, idx) => el.id = idx);
var foo = Math.floor(Math.random() * 15000);

Tests:

1
const index = arr.findIndex((itm) => itm.id === foo); const newArr = [...arr]; arr[index] = {...arr[index], text: "edittest"}
2
const newArr = arr.map((row, index) => { if (index === 1) { return { ...arr[0], text: "edittest" } } })