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Run results for:
map over Object (or Record in TS) vs Map
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<iframe src="https://measurethat.net/Embed?id=591579" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Chrome OS 14541.0.0
Device Platform:
Desktop
Date tested:
one year ago
Obj / Object.entries()
3K/s
Map / Array.from()
2K/s
Map / spread
2K/s
View exact numbers
Test name
Executions per second
✓
Obj / Object.entries()
2,935 Ops/sec
Map / Array.from()
2,122 Ops/sec
Map / spread
1,981 Ops/sec
Tests:
Obj / Object.entries()
let obj = {}; for (let i = 0; i < 10000; i++) { obj[i] = i; } let tuples = Object.entries(obj).map(([k, v]) => [k, v]);
Map / spread
let map = new Map(); for (let i = 0; i < 10000; i++) { map.set(i, i); } let tuples = [...map].map(([k, v]) => [k, v]);
Map / Array.from()
let map = new Map(); for (let i = 0; i < 10000; i++) { map.set(i, i); } let tuples = Array.from(map).map(([k, v]) => [k, v]);