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Run results for:
const vs let vs var
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=588142" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 Edg/133.0.0.0
Browser:
Chrome 133
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
const
12.2M/s
var
10.5M/s
let
3.2M/s
View exact numbers
Test name
Executions per second
✓
const
12,200,863 Ops/sec
var
10,458,619 Ops/sec
let
3,183,302 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()