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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=492050" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 119
Operating system:
Android
Device Platform:
Mobile
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
var
29.1M/s
const
4.7M/s
let
4.6M/s
View exact numbers
Test name
Executions per second
✓
var
29,106,978 Ops/sec
const
4,727,077 Ops/sec
let
4,616,436 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()