Run results for: bind props test

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Edg/110.0.1587.57

Browser: Chrome 110

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
test1	34.2 Ops/sec
test2	30.9 Ops/sec
test3	233.7 Ops/sec
test4	216.3 Ops/sec
test5	37.6 Ops/sec
test6	37.3 Ops/sec
test7	52.2 Ops/sec

Script Preparation code:


const readonly = (prop) => typeof prop === 'function'
  ? { configurable: false, enumerable: true, get: prop }
  : { configurable: false, enumerable: true, value: prop, writable: false };
const readonlyExpand = (props) => Object.entries(props).reduce((prev, [k, v]) => {
  prev[k] = readonly(v);
  return prev;
}, {});

const a100 = new Array(100).fill(null);

function test1() {
  return Object.defineProperties({}, readonlyExpand(a100.reduce((prev, _, i) => {
    prev[`key${i}`] = i;
    return prev;
  }, {})))
}

function test2() {
  return Object.defineProperties({}, readonlyExpand(a100.reduce((prev, _, i) => {
    prev[`key${i}`] = () => i;
    return prev;
  }, {})))
}

function test3() {
  return a100.reduce((prev, _, i) => {
    prev[`key${i}`] = i;
    return prev;
  }, {});
}

class Test4 {
  test() {
    a100.forEach((_, i) => {
      this[`key${i}`] = i;
    })
  }
}

function test4() {
  const t = new Test4();
  t.test();
  return t;
}

function test5() {
  const o = {};
  a100.forEach((_, i) => {
    Object.defineProperty(o, `key${i}`, readonly(i))
  })
  return o;
}

function test6() {
  const o = {};
  a100.forEach((_, i) => {
    Object.defineProperty(o, `key${i}`, readonly(i))
  })
  return o;
}

function test7() {
  const p = a100.reduce((prev, _, i) => {
    prev[`key${i}`] = readonly(i);
    return prev;
  }, {});
  return Object.defineProperties({}, p);
}

Tests:

test1
for (let i = 0; i < 1000; i++) { test1(); }
test2
for (let i = 0; i < 1000; i++) { test2(); }
test3
for (let i = 0; i < 1000; i++) { test3(); }
test4
for (let i = 0; i < 1000; i++) { test4(); }
test5
for (let i = 0; i < 1000; i++) { test5(); }
test6
for (let i = 0; i < 1000; i++) { test6(); }
test7
for (let i = 0; i < 1000; i++) { test7(); }