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Run results for:
const vs let vs var (fixed)
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=582761" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
var
9.8M/s
let
9.4M/s
const
9.1M/s
View exact numbers
Test name
Executions per second
✓
var
9,756,392 Ops/sec
let
9,352,208 Ops/sec
const
9,089,721 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()