objhectCreation.js

'use strict';

const Benchmark = require('benchmark');
const benchmarkOutput = require('beautify-benchmark');

var suite = new Benchmark.Suite;

function litteral() {
  return {
    a: 3,
    b: 5,
    c: 6
  };
}

function generateObject(a) {
  return {
    a: a,
    b: 5,
    c: 6
  };
}

function useGenerator() {
  return generateObject(3);
}

function construct(a) {
 this.a = a;
 this.b = 5;
 this.c = 6;
}

function useConstructor() {
 return new construct(3);
}

suite.add('constructor', () => {
  useConstructor();
});

suite.add('literal', () => {
  litteral();
});

suite.add('generator', () => {
  useGenerator();
});

suite.on('cycle', event => {
  benchmarkOutput.add(event.target);
})

suite.on('complete', function () {
  benchmarkOutput.log();
});

suite.run();

results.txt

  constructor x 132,417,608 ops/sec ±1.36% (91 runs sampled)
  literal     x 132,574,448 ops/sec ±1.54% (91 runs sampled)
  generator   x 129,888,410 ops/sec ±0.74% (93 runs sampled