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Post #2972 3.3K
CHALLENGE

const memoize = (fn) => {
const cache = new Map();
return (...args) => {
const key = JSON.stringify(args);
if (cache.has(key)) return cache.get(key);
const result = fn(...args);
cache.set(key, result);
return result;
};
};

const fibonacci = memoize((n) => {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
});

console.log(fibonacci(10));
console.log(fibonacci(5));
console.log(fibonacci(10));
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