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Run results for:
const vs let vs var fork
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=505796" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3.1 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
let
15.6M/s
var
15.4M/s
const
15.1M/s
View exact numbers
Test name
Executions per second
✓
let
15,634,461 Ops/sec
var
15,382,945 Ops/sec
const
15,121,953 Ops/sec
Tests:
var
var g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()
let
let g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()
const
const g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()