Run details:
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.106 Safari/537.36
Chrome 91
Windows 7
Desktop
3 years ago
Test name Executions per second
Int16Array 55296.4 Ops/sec
Plain JS array 55468.1 Ops/sec
Script Preparation code:
x
 
var int16 = new Int16Array(100);
var regular = [];
for(var i=0;i<100;i++){
  int16[i] = i;
  regular.push(i);
}
Tests:
  • Int16Array

     
    var sum = 0;
    for(var i=0;i<100;i++){
      sum = sum + int16[i];
    }
  • Plain JS array

     
    var sum = 0;
    for(var i=0;i<100;i++){
      sum = sum + regular[i];
    }