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Run results for:
const vs let vs var (fixed)
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Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 17
Operating system:
iOS 17.5.1
Device Platform:
Mobile
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
var
28.5M/s
let
25.6M/s
const
21.8M/s
View exact numbers
Test name
Executions per second
✓
var
28,477,246 Ops/sec
let
25,594,508 Ops/sec
const
21,819,732 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()