What is memoization and what is it good for?

memoization is the process of building a function that remembers the results or values ​​of its previous calculations.
The purpose of making a memorized function is that we will avoid evaluating the function if it has already been executed with the same parameters in the last evaluation.This saves time, but also has the disadvantage that we will consume more memory to save previous results.

Implement a memoization helper function.

function memoize(fn) {const cache = {};return function (param) {if (cache[param]) {console.log('cached');return cache[param];} else {let result = fn(param);cache[param] = result;console.log(`not cached`);return result;}}}const toUpper = (str = "")=> str.toUpperCase();const toUpperMemoized = memoize(toUpper);toUpperMemoized("abcdef");toUpperMemoized("abcdef");

This memoize helper function only works with functions that accept one argument.We need to create a memoize

that accepts multiple parameters