Memoization and How to Memoize | Javascript

Memoization is a technique in computer programming where the results of a expensive function are stored for later reuse, so that when the same inputs occur again, the precomputed results are returned instead of recomputing the results. This can greatly improve performance, especially in situations where the same inputs occur frequently. In JavaScript, memoization can be implemented by caching the results of a function in an object and checking the cache before executing the function. The cache key can be created by stringifying the function arguments.

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