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Run results for:
const vs let vs var
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=602736" 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/18.4 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
var
49.4M/s
let
48.9M/s
const
48.7M/s
View exact numbers
Test name
Executions per second
✓
var
49,411,028 Ops/sec
let
48,900,788 Ops/sec
const
48,737,628 Ops/sec
Tests:
var
var g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()
let
var 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()