Run results for: Spread operator vs Array.push vs array[lastIndex]

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 Edg/135.0.0.0

Browser: Chrome 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Tests:

Using spread operator
const basicData = [{id: 1}, {id: 2}, {id: 3}]; const finalData = [...basicData, {id: 4}];
Using push function
var basicData = [{id: 1}, {id: 2}, {id: 3}]; basicData.push({id: 4});
Add to last index of array
var basicData = [{id: 1}, {id: 2}, {id: 3}]; basicData[basicData.length] = {id: 4};