Run results for: EcmaScript6 Int16Array vs regular JS array

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/136.2 Mobile/15E148 Safari/605.1.15

Browser: Mobile Safari 18

Operating system: iOS 18.3.2

Device Platform: Mobile

Date tested: one month ago

Test name	Executions per second
Int16Array	18292002.0 Ops/sec
Plain JS array	13614179.0 Ops/sec

Script Preparation code:

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]; }

Run results for: EcmaScript6 Int16Array vs regular JS array

Int16Array

Plain JS array