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One of the first software development courses I ever took involved recreating the well known JavaScript library Underscore.js from scratch. Implementing more basic ones like each or map were manageable for me, but when we reached the more advanced ones, I was unable to keep up. One of the functions that really gave me a lot of trouble was memoize. I figuratively banged my head up against the wall with this function for countless hours until one of my peers had to just show me how to do it. I was definitely overthinking it, and even after my peer explained how it worked, I didn't fully understand it. After encountering the memoization concept while learning React and researching more algorithmic functions, I revisited the memoize function and feel like I understand the concept and implementation.