JavaScript Memoization Made Simple!

An explanation of memoization in JavaScript. Memoization is a super useful performance optimization technique that can be used to improve the performance of slow running functions. I explain how to memoize in JavaScript in the clearest and most concise way I can! Created by Gregg Fine.

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[_____AjCoder______]

this video is so underrated !! good job bro cant be explained any better 👏👏👏

[clydecalador]

With such explanations I really hope your number of subscribers increases dramatically. This was by far the best explanation I have seen on this topic. Keep doing what you're doing, you have a gift for teaching!

[PIYUSH-lzzq]

Please bring more such concepts of js with implementation.

[caizza]

Such a beautiful explanation, in-depth yet clear. Thanks!

[zameeebasha]

Can't get clear than this. Great job Gregg. 🙏

[nerogatonevoso]

Great explanation! I am making some of Underscore library methods from scratch (for a bootcamp) and was stuck on _.once and _.memoize, but that helped me understand not only about caching but also to be able to do the _.once function, which has similar principles. Thanks!

[yusefdaramay]

That was such a great explanation! Thanks 🙏

[TheCodeCreative]

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[mmphvkl]

Such a brilexplanation for a layman like me in data structure in js. Thank you so much.

[TheCodeCreative]

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[dougm]

I only understood half of this, but damn was it cool

[yuanzhang]

subscribed! Thanks for the video. I will def check more of your videos! I still have a question, if we run the memoize function for two times, doesnt the catch get reassign as am empty obj again? Coz the first line of the code to make it an empty obj??Thanks in advance!!!

[jacinyan]

Hi, just wondering if you can make a video to relate this to React memoization and hooks, say useMemo and useCallback. I think that would be highly appreciated by a lot of us😁

[aya]

Very clear explanation and example!!! Super helpful!! Thank you so much!!!! I also watched your "debounce" video, also wonderful tutorial!! Btw, Do you think your playlist "Javascript" is for people who are learning Advanced JS? I want to learn Advanced JS since I finished basic tutorial and I wonder if the playlist is for me.

[vikramsinghrajpurohit]

Great explanation. In React there is a React. memo hook. Does this concept work behind the scene there?

[subhashgn]

Very well explained.
Thank you.

I have one question, if we are passing only one argument to the function why are using ...arg?

[ninjarogue]

Hey, where is up with your font? the === and <= look interesting..

[ManontheBroadcast]

if ...args is an array then how can we say cache[args] ?
Shouldn't we iterate over each one?

[Troy-olfk]

Please make a video about browser devtools

[tanzeemahmed]

I am a noob in JS. Can someone please explain the syntax of function that is getting returned from memoize. How do we have access to ...args and how does args get value from outside, why can't I console.log ...args as first line inside the memoize function. I really can't get my head around the return function syntax