Reduce: 10 Different Examples. JavaScript Fundamentals.

Reduce may be the most versatile function in JavaScript. You can use it to map an array, to count an array, to sum values, to find the min or max value, to find a specific record, to flatten an array, to convert from an array to an object, and the list goes on. This is a love story for reduce.

In this video we will use reduce in 10 different ways and also learn how to build our own reduce function to discover how it works underneath the hood.

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[ericzorn]

For anyone learning JavaScript I find this absolutely imperative. Amazing video!

[adibirta]

20:23 These kind of moments are priceless :)) Great video! Thanks!

[metasavagex]

This is why you're awesome, definitely showing the power of reduce, other tutorials just play around with it with adding values.

Thank you for this 🔥 content!

[newmagicfilms]

Finally.... after all these years as a developer, I clearly understand it! Thank you!

[alasdair]

I have never understood how to use reduce, like at all...I do now. Thank you so much. Liked, saved and subscribed!

[piyushaggarwal]

Reduce is really cool man. Fun fun function guy told us that reduce can do map, filter and everything but didn't tell how. Saving your video for watching in detail later.

[xmarrakesh]

Thank you a lot, friend! It was getting hard to wrap my head around the concenpt but now I finally get it! :)

[ianfinley]

Best description I have seen opening this up. Worlds ahead of anything else out there. Thank you!

[danielluna]

This could be the single most helpful video I've seen all year. I had no idea how powerful reduce was. Get the concept of the accumulator down and it makes so many difficult tasks much easier. Great video. I would love to see more of these on other object and array functions. This was 🔥🔥🔥🔥🔥🔥

[MakdoKro]

Big ty !!! thats the 1st video about reduce() which gives a good full explanation !

[mrkhoros]

Your dominance over arrays and objects is incredible. Please put more videos about these simple methods with these types of usages. Thanks.

[mrWorldwideJuan]

For anyone learning JS right now, this is a must-watch. Thanks for sharing it!

[lucasae]

This is the first reduce tutorial I found that actually shows the value and versatility of reduce. hats off to you. I've been studying the methods shown in this video and I think my brain has bled at least a full gallon. this is such good and difficult study material. Thank you!

[rezahosseini]

I finally did it! I finally learned reduce!! Thank you!

[cliffclof]

@21:14 i think this is what he meant by hand implement a reduce. Nice overview.

[jpetty]

Great vid! Very good examples and explanations. By far this was the best video on reduce I found.... And I've watched a lot lmao. Thanks again

[FromTheHeart-]

Omgggg ty. Everyone else's tutorials just have a set of numbers in their example. Your tutorial is more realistic on what is common. Thanks so much for having the intuition to have this tutorial. Subscribed!!

[victorlindh]

Awesome examples! Thank you so much for this!

[araazizi]

This video single handedly taught me A LOT of stuff that used to make JS look like a big question mark in my head lol kudos

[slickchick]

I finally understand how to use reduce. I have been so scared of using it. Thank you for this video.