Run details:
Mozilla/5.0 (Linux; Android 11; Pixel 4a) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.166 Mobile Safari/537.36
Chrome Mobile 92
Android
Mobile
3 years ago
Test name Executions per second
typed array 2738.2 Ops/sec
not typed array 2283.7 Ops/sec
Script Preparation code:
x
 
var size = 1024;
var initialArray = [];
for(let i = 0; i < size; i++) {
  initialArray.push(Math.random());
}
Tests:
  • typed array

     
    const arr = new Float64Array(size);
    for(let i = 0; i < size; i++) {
      arr[i] = initialArray[i]/2;
    }
  • not typed array

     
    const arr = [];
    for(let i = 0; i < size; i++) {
      arr.push(initialArray[i]/2);
    }