Run results for: simple versus get x versus array[0] versus Float32Array versus Float32Array get versus Int32Array versus Int32Array extended revision

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

simple 3

79/s

extended int 32

78/s

simple 2

77/s

array[0] 2

76/s

int 32

72/s

extended float 32

71/s

array[0]

69/s

float 32

63/s

simple

40/s

set / get

33/s

View exact numbers

Test name	Executions per second
✓ simple 3	79 Ops/sec
extended int 32	78 Ops/sec
simple 2	77 Ops/sec
array[0] 2	76 Ops/sec
int 32	72 Ops/sec
extended float 32	71 Ops/sec
array[0]	69 Ops/sec
float 32	63 Ops/sec
simple	40 Ops/sec
set / get	33 Ops/sec

HTML Preparation code:

<span></span>

Script Preparation code:

let span = document.body.querySelector("span");

class Float32ArrayExtended extends Float32Array {
  
  constructor (val) {
    super(1);
    this[0] = val;
  }

  get x () { return this[0]; }
  set x (v) { this[0] = v; }
}

class Int32ArrayExtended extends Int32Array {
  
  constructor (val) {
    super(1);
    this[0] = val;
  }

  get x () { return this[0]; }let
  set x (v) { this[0] = v; }
}

const size = 100000;
const array = new Array(16).fill(1);
const arrayEF32 = new Float32ArrayExtended (16);
const arrayF32 = new Float32Array (16);
const arrayEI32 = new Int32ArrayExtended (16);
const arrayI32 = new Int32Array (16);
let x = 1;

const obj = {
    get x() {
        return array[0];
    },

    set x(value) {
        array[0] = value;
    }
};

let sum = 0;

Tests:

array[0]
sum = 0; for (let i = 0; i < size; i++) { array[0] = Math.random () * 1000; sum += array[0]; } span.innerText = sum;
set / get
sum = 0; for (let i = 0; i < size; i++) { obj.x = Math.random () * 1000; sum += obj.x; } span.innerText = sum;
float 32
sum = 0; for (let i = 0; i < size; i++) { arrayF32[0] = Math.random () * 1000; sum += arrayF32[0]; } span.innerText = sum;
extended float 32
sum = 0; for (let i = 0; i < size; i++) { arrayEF32.x = Math.random () * 1000; sum += arrayEF32.x; } span.innerText = sum;
int 32
sum = 0; for (let i = 0; i < size; i++) { arrayI32[0] = Math.random () * 1000; sum += arrayI32[0]; } span.innerText = sum;
extended int 32
sum = 0; for (let i = 0; i < size; i++) { arrayEI32.x = Math.random () * 1000; sum += arrayEI32.x; } span.innerText = sum;
simple
sum = 0; for (let i = 0; i < size; i++) { x = Math.random () * 1000; sum += x; } span.innerText = sum;
array[0] 2
sum = 0; for (let i = 0; i < size; i++) { array[0] = Math.random () * 1000; sum += array[0]; } span.innerText = sum;
simple 2
sum = 0; for (let i = 0; i < size; i++) sum += Math.random () * 1000; span.innerText = sum;
simple 3
sum = 0; for (let i = 0; i < size; i++) { const x = Math.random () * 1000; sum += x; } span.innerText = sum;