Map, Filter & Reduce EXPLAINED in JavaScript - It's EASY!

In today's video I'll be taking you through my favourite 3 methods in JavaScript: map, filter and reduce. All of these are useful array methods that you'll likely need as you develop JavaScript applications or websites.

Chapters:
0:00 Intro
1:15 map
3:37 filter
5:57 filter & map
6:56 reduce
11:12 Outro

For your reference, check this out:

If this video helped you out and you'd like to see more, make sure to leave a like and subscribe to dcode!

#dcode #javascript

[victormuuo]

I'm not that dev who drops comments on every tutorial, but bro honestly, you gat it ! Big thumbs up

[StevieB]

You've got yourself another well-deserved subscriber. Your teaching style is excellent and very easy to follow. Thanks for introducing me to the concept of chaining methods together, this is fantastic!

[shanardgreen]

I loved your video it really helped me with a tough project I'm undertaking at work. You are awesome! *Subscribed*

[freddyrichter]

This made it so understandable, thank you

[Phill_F]

In my beginner opinion, you explained this super well, thank you!

[Neddiek]

This a perfect example to describe 3 simple functions that seem complex.
I subscribed.

[Shadel.]

Thanks for your efforts. These methods are really great, useful and pratic.

[thanasisathanasi]

Thank you brother. I came here for this reason !!!

[midwestmetro]

Thanks a lot, very simple to understand

[antonijabaric]

Finally something to understand. Great example. Thank you!

[malikgulraiz]

My understanding with these arrays methods after watching your video 📈📈

[scwyrhl]

Made it simple and easy to understand Thanks man!

[nour]

my brain started drifting away in the middle of the reduce method explanation.

[academicdeaneducation]

What does "person" represent? Is "person" suppose to be an object in the new array? Trying to map the syntax to the logic. Thank you for your channel. New subscriber!

[Salah-YT]

thank u so much bro so i did learn before people say arrow function don't need return so I did try it its work so just like that, const names = people.map((person) => person.name); thanx anyway

[hellothere]

The Udemy course link isn’t working from the U.S.

[scott_itall]

what about when with an array provided you get .filter is not a function? an array passed into a function to filter the array.

[user]

In the map case... what happens if one of the 3 objects has no name porperty? The resulting array woudn't be of the same length as the original? Or what??

[Mark-nhzg]

How does the code know that "person" refers to the objects in the array if the name of the objects (person) was never defined?

[nedyalkotodorov]

well deserved follow and like simple and nice explanation