MeasureThat.net

Run results for: const vs let vs var (fixed)

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Run details:
Mozilla/5.0 (Linux; Android 13; Pixel 4a (5G)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Mobile Safari/537.36
Chrome Mobile 106
Android
Mobile
2 years ago
Test name Executions per second
var 10072077.0 Ops/sec
let 12321350.0 Ops/sec
const 1882259.4 Ops/sec
Tests:

  • var

    AخA
     
    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()