Run results for: set in loop vs at the end

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Browser: Chrome 83

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Set in the loop	55.7 Ops/sec
set after the loop	18985.2 Ops/sec

Tests:

Set in the loop
const dataset = {data:[]}; for(var i=0; i<1000; i++){ dataset.data = [...new Set([...dataset.data, i, (i+1)])]; }
set after the loop
const dataset = {data:[]}; for(var i=0; i<1000; i++){ dataset.data.push(i); dataset.data.push(i+1); } dataset.data = [...new Set([...dataset.data])]