map-set-obj.benchmark.js

const randomstring = require('randomstring');
const Benchmark = require('benchmark');

const numOfKeys = parseInt(process.argv[2], 10) || 1000000;
const keyLength = 13;

console.time('keygen');
const randomKeys = Array.from({length: numOfKeys}, () => randomstring.generate(keyLength));
console.timeEnd('keygen');

const obj = {};
const set = new Set();
const map = new Map();

function objSet() {
	randomKeys.forEach(k => {
		obj[k] = 1;
	});
}

function objGet() {
	let x;
	randomKeys.forEach(k => {
		x = obj[k];
	});
}

function setSet() {
	randomKeys.forEach(k => {
		set.add(k);
	});
}

function setGet() {
	let x;
	randomKeys.forEach(k => {
		x = set.has(k);
	});
}

function mapSet() {
	randomKeys.forEach(k => {
		map.set(k, 1);
	});
}

function mapGet() {
	let x;
	randomKeys.forEach(k => {
		x = map.get(k);
	});
}

	

new Benchmark.Suite()
	.add('obj#set', objSet)
	.add('map#set', mapSet)
	.add('set#set', setSet)
	.add('obj#get', objGet)
	.add('map#get', mapGet)
	.add('set#get', setGet)
	.on('cycle', (ev) => {
		console.log(String(ev.target));
	})
	.on('complete', function() {
		console.log(`Fastest ${this.filter('fastest').map('name')}`);
	})
	.run({async: true});