Run results for: Iterate-Set-vs-arr

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
for of: many items	75071.5 Ops/sec
convert to array: many items	2693.2 Ops/sec
native iterator: many items	53241.4 Ops/sec
native iterator w/ size: many items:	46488.3 Ops/sec

Script Preparation code:

var manyItemSet = new Set(Array.from({ length: 10000 }, (_, i) => i));
var arr = Array.from(manyItemSet);

Tests:

for of: many items
let result = 0; for (const item of manyItemSet) { result += item; }
convert to array: many items
let result = 0; let l = arr.length; for (let i = 0; i < l; i++) { result += arr[i]; }
native iterator: many items
let result = 0; let val = null; const iter = manyItemSet.values(); while (!(val = iter.next()).done) { result += val.value; }
native iterator w/ size: many items:
let result = 0; let iter = manyItemSet.values(); for (let i = manyItemSet.size; i--;) { result += iter.next().value; }