How can I debug my memoization function?

I'm having trouble with my memoization function. It doesn't seem to be caching results properly.

Let's take a look at your code. Can you share the implementation of your memoization function?

Sure! Here it is: function memoize(fn) { const cache = {}; return function(...args) { if (cache[args]) return cache[args]; const result = fn(...args); cache[args] = result; return result; }; }

I see the issue. The problem is that you're using the array args as a key directly. Arrays are reference types, so they won't work as expected in an object key.

What should I use instead?

You can convert the args array to a string using JSON.stringify(args) to use it as a key in the cache.