Learning new things

Anny Gutierrez Lopez annygutierrez

Learning new things

annygutierrez / refactor-algorithm.js

Created September 10, 2020 04:58

How to improve the performance of an algorithm by indexing an array

	let users = [];
	let products = [];

	const keyBy = (arr, key) => arr.reduce((acc,el) => {
	acc[el[key]] = el;
	return acc;
	}, {});

	const elem = 50000;
	for (let i = 0; i < elem; i++) {