MeasureThat.net

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

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 16_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Mobile/15E148 Safari/604.1
Mobile Safari 16
iOS 16.6
Mobile
one year ago
Test name Executions per second
var 29776826.0 Ops/sec
let 28010408.0 Ops/sec
const 26193790.0 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()