A memoize decorator function that is capable of handling multiple parameters

memoize.js

// A memoize decorator function 
// that is capable of handling multiple parameters 
export const memoize = (fn) => {
    const cache = {};

    return (...args) => {
        if (JSON.stringify(args) in cache) {
            // if you want to verify result comes from cache
            console.log(cache); 
            return cache[JSON.stringify(args)];
        }
        const result = fn(...args);
        cache[JSON.stringify(args)] = result;
        return result;
    }
}