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Run results for: Array.apply vs .from vs map vs loop

Compare the performance of various array creation methods.

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 Edg/114.0.1823.67
Chrome 114
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
Array.apply 1578336.4 Ops/sec
Array.from 707714.4 Ops/sec
map 4302881.0 Ops/sec
Loop and assign 24591278.0 Ops/sec
Loop and push 23934880.0 Ops/sec
Tests:

  • Array.apply

    AخA
     
    Array.apply(null, new Array(10)).map(() => false);

  • Array.from

     
    Array.from({ length: 10}, () => false);

  • map

     
    new Array(10).map(() => false);

  • Loop and assign

     
    const r = [];
    for (let i = 0; i < 10; i++) r[i] = false;

  • Loop and push

     
    const r = [];
    for (let i = 0; i < 10; i++) r.push(false);