Run results for: public vs private vs symbol

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36

Browser: Chrome 116

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
public	480133.7 Ops/sec
private	84312.2 Ops/sec
local	793236.4 Ops/sec
private public	493832.4 Ops/sec
symbol	460718.2 Ops/sec

Script Preparation code:

const zx = Symbol('zx');
const zy = Symbol('zy');
const fsq = Symbol('fsq');
const zx2 = Symbol('zx2');
const zy2 = Symbol('zy2');
const n = Symbol('n');

class Benchmark {
  #zx;
  #zy;
  #fsq;
  #zx2;
  #zy2;
  #n;
  #private = {};

  run_private(cx, cy) {
    this.#zx = 0;
    this.#zy = 0;
    for (this.#n = 0; this.#n < 256; this.#n++) {
      this.#zx2 = this.#zx * this.#zx;
      this.#zy2 = this.#zy * this.#zy;
      this.#zy = 2 * this.#zx * this.#zy + cy;
      this.#zx = this.#zx2 - this.#zy2 + cx;
      this.#fsq = this.#zx2 + this.#zy2;
      if (this.#fsq > 4)
         return false;
    }
    return true;
  }

  run_private_public(cx, cy) {
    const p = this.#private;
    p.zx = 0;
    p.zy = 0;
    for (p.n = 0; p.n < 256; p.n++) {
      p.zx2 = p.zx * p.zx;
      p.zy2 = p.zy * p.zy;
      p.zy = 2 * p.zx * p.zy + cy;
      p.zx = p.zx2 - p.zy2 + cx;
      p.fsq = p.zx2 + p.zy2;
      if (p.fsq > 4)
         return false;
    }
    return true;
  }

  run_public(cx, cy) {
    this.zx = 0;
    this.zy = 0;
    for (this.n = 0; this.n < 256; this.n++) {
      this.zx2 = this.zx * this.zx;
      this.zy2 = this.zy * this.zy;
      this.zy = 2 * this.zx * this.zy + cy;
      this.zx = this.zx2 - this.zy2 + cx;
      this.fsq = this.zx2 + this.zy2;
      if (this.fsq > 4)
         return false;
    }
    return true;
  }

  run_symbol(cx, cy) {
    this[zx] = 0;
    this[zy] = 0;
    for (this[n] = 0; this[n] < 256; this[n]++) {
      this[zx2] = this[zx] * this[zx];
      this[zy2] = this[zy] * this[zy];
      this[zy] = 2 * this[zx] * this[zy] + cy;
      this[zx] = this[zx2] - this[zy2] + cx;
      this[fsq] = this[zx2] + this[zy2];
      if (this[fsq] > 4)
         return false;
    }
    return true;
  }

  run_local(cx, cy) {
    let zx = 0;
    let zy = 0;
    for (let n = 0; n < 256; n++) {
      let zx2 = zx * zx;
      let zy2 = zy * zy;
      zy = 2 * zx * zy + cy;
      zx = zx2 - zy2 + cx;
      let fsq = zx2 + zy2;
      if (fsq > 4)
         return false;
    }
    return true;
  }
}

var benchmark = new Benchmark();

Tests:

public
benchmark.run_public(-0.5, 0.1);
private
benchmark.run_private(-0.5, 0.1);
local
benchmark.run_local(-0.5, 0.1);
private public
benchmark.run_private_public(-0.5, 0.1);
symbol
benchmark.run_symbol(-0.5, 0.1)

Run results for: public vs private vs symbol

public

private

local

private public

symbol