MeasureThat.net

Run results for: TestArrayAllocation

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36
Chrome 109
Windows
Desktop
2 years ago
Test name Executions per second
1 6.6 Ops/sec
2 6.6 Ops/sec
3 9.8 Ops/sec
4 5.1 Ops/sec
5 5.2 Ops/sec
6 16.5 Ops/sec
7 14.4 Ops/sec
Script Preparation code:
​x
 
var array = new Array(1000000).fill(0);
​
function getObj() {
    return {x: 0, Y: 0}; 
}
Tests:

  • 1

     
    for (let i = 0; i < array.length; i++) array[i] = getObj();

  • 2

     
    for (let i = 0; i < array.length; ++i) array[i] = getObj();

  • 3

     
    const l = array.length;
    for (let i = 0; i < l; ++i) array[i] = getObj();

  • 4

     
    for (const i in array) array[i] = getObj();

  • 5

     
    let i;
    for (i in array) array[i] = getObj();

  • 6

     
    const arr2 = array.map(_ => getObj());

  • 7

     
    const arr3 = [];
    for (let i = 0; i < 1000000; i++) arr3.push(getObj());