Tests:
  • Map

    AخA
     
    let randomU32 = function() {
        return Math.random() * (1 << 31) >>> 0;
    }
    let map = new Map();
    for (let i = 0; i <= 50000; i++) {
        map.set(randomU32(), true);
    }
  • Array

     
    let randomU32 = function() {
        return Math.random() * (1 << 31) >>> 0;
    }
    let arr = [];
    for (let i = 0; i <= 50000; i++) {
      arr[randomU32()] = true;
    }
  • Object

     
    let randomU32 = function() {
        return Math.random() * (1 << 31) >>> 0;
    }
    let obj = {};
    for (let i = 0; i <= 50000; i++) {
      obj[randomU32()] = true;
    }
  • Set

     
    let randomU32 = function() {
        return Math.random() * (1 << 31) >>> 0;
    }
    let set = new Set();
    for (let i = 0; i <= 50000; i++) {
      set.add(randomU32());
    }
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    Map
    Array
    Object
    Set

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one month ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Chrome 132 on Mac OS X 10.15.7
View result in a separate tab
Test name Executions per second
Map 358.1 Ops/sec
Array 197.8 Ops/sec
Object 205.7 Ops/sec
Set 384.9 Ops/sec