Run details:
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.122 Safari/537.36 Vivaldi/1.4.589.29
Chrome 53
Windows 7
Other
8 years ago
Test name Executions per second
Int16Array 57782.2 Ops/sec
Plain JS array 62936.5 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];
    }