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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=578700" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
let
16.5M/s
const
15.9M/s
var
15.5M/s
View exact numbers
Test name
Executions per second
✓
let
16,516,854 Ops/sec
const
15,903,127 Ops/sec
var
15,517,945 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()