JavaScript Array Reduce

JavaScript Array Reduce
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[@haroldcjennettiii]

Once again Mosh shows why he's one of the best coding teachers. You make things very clear, because you explain what EVERYTHING is, in laymen's terms. A lot of coding teachers forget they're teaching beginners.

[@albatros280]

Finally... Somebody who explains reduce well. MDN documentation didn't help me.

[@ginnerzapata5909]

Just came from MDN 'cause I didnt understant a sheep!

[@monfernape]

Exactly.

[@kelechukwutasie4030]

You are very right! MDN didnt help at all...

[@frownless]

Ikr he is awesome

[@damascanalexandru4998]

So much clarity in 7 minutes video !

[@johnisutsa1641]

How am I only finding your tutorials now. You explain so well. I'm taking you with me for the rest of my Java script journey.

[@nashpaints]

Been looking high and low for a simple explanation of the reduce method, and only now I have found it. Thank you.

[@RetroRick1990]

Awesome , just understand what is the role of the "Accumulator" and the "Current Value" makes everything very clear. Thank man!

[@glantzdesign6239]

Thank you Mosh. I wish everyone can explain things as clearly as you.

[@onyeukwuhycient438]

This is by far the clearest explanation I've seen on the reduce method so far.. Thanks a lot Mr Mosh..

[@mariodmp]

This is super detailed, yet simple to understand, just great!

[@gilbertrosario8633]

Great tutorial, very well explained and easy to follow, I can finally say I understand the reduce method. Thanks you! Hope to see more tutorials like this in the future, like this key word, classes, call, bind, apply, etc.

[@preciousayobamiolagade4284]

Boss more blessing to you, love from Nigeria. You just explained all MDN couldn't in minutes

[@harwinderthakur9708]

I spent 20 minutes on mdn understanding all this. I got more confused there.Thanks man

[@tung01vuongtri33]

finally, I can totally understand the reduce method thanks to you, appreciate your channel

[@millertime6]

Took me a while to get reduce even after learning all the other iteration methods. Thank you!

[@clarinetisfying]

I love he teaches coding very clearly in a short amount of time. He's the best coding teacher.

[@msh1830]

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[@jame_sta]

You're the BEST Instructor I've ever come across +ProgrammingwithMosh
*sheds a tear* LOL :D -- I can't wait for more JS videos!!!!!

[@MatchesMaloneThe3rd]

Cleanest explanation I've seen so far. You just earned yourself a sub.

[@Nessquickable]

Hadn't got used to that reduce method and was struggling for a while, only took me a minute of your explanation to spark a lightbulb in my head and I felt relieved. Thank you.

[@msh1830]

czcams.com/video/a_Bfu1XWGmI/video.html

[@JeffThePoustman]

Thank you, Mosh. I found this very helpful for grasping the concept of reduce().

[@EnricMartin1987]

Thank you Mosh. This is one of the best explanations about how to use reduce, that I could find on CZcams.

[@shayanfaghihi]

I've explored every single line of MDN reference, but I didn't learn as much I could get from you. Appreciate that mate

[@bobthehuntsman1548]

Thank you so much for this tutorial! Love the no-nonsense approach that any layman can pick up on :)

[@WanBarmawi]

The English is just so perfect for a non-native speaker like me. The explanation is so easy to understand too. Thank you so much, you get my subscription!

[@CrydonPT]

Thank you for explaining this right! No one seems to explain the first callback value as the accumulator but yet as the previous value.

[@zdargahi]

It would be great if you explain how the accumulation can be an array or object, and how when instead of chaining map and filter we can use reduce. I guess it's in the complete course.

[@liamwelsh5565]

If you were using an array, you could return an array in the reduce, and spread the accumulator. Then add any new value after. Example:
nums = [1,2,3,4,5]
const doubledNums = nums.reduce( (acc, num) => [...acc, num*2], [ ])
console.log(doubledNums) // [2,4,6,8,10]
Obviosuly a .map could do the same thing but there are more complex examples where it is useful.

[@Xetron1978]

@@liamwelsh5565 Hi, I'm very new to coding, may I know why did you add the "..." before acc? I'm not really sure what it does here

[@liamwelsh5565]

@@Xetron1978 … is the spread operator. If you have an array, let’s call x and want to make a new array, let’s call y, that has all the values of x, you can spread x into y.
Example:
Const x = [1,2,3]
Const y = […x]
Console.log(y)
// [1,2,3]
You can also spread objects into objects

[@alvarosena858]

This video is posted a long time ago, but for the first time i understand reduce. Thanks Mosh!

[@slickchick8292]

Mosh, thank you so much! You broke this down into a very easy to understand way.

[@demiansims728]

This was VERY helpful and clear. Thanks, Mosh

[@timilehinoni]

By far the best explanation of reduce I have gotten haven watch tones of videos and tutorials

[@ayromo7]

Excellent explanation. I was confused how it worked until I saw this. Keep doing what you're doing man!

[@travezripley]

Thank you Mosh!!! This ruled!!!

[@rpb4865]

Can anyone explain why for loop or foreach is "old way" and reduce is more "elegant way"?
I find the"old way" more readable than the "elegant way"

[@hamdiboujarra]

understand the elegant way and use the readable way if you want, after some months you will like to use the elegant way

[@mikaelhelin6348]

I also think the "old way" is better. The "elegant way" is limited to iteration of type y_n = f(y_{n-1}, x_n) where f is the callback function. There is this new movement in programming where people think old fashion for-loops are ugly code.

[@user-yz6jf5vv6h]

Hooray, finally someone explained normally .. thank you very much!

[@bevedel]

After watching this higher education, I was finally able to deeply understand it. Thank you!

[@niwanthakaweragoda9480]

Man, amazing explanation! So much better than some of the videos and websites I have seen on this topic!

[@Gamer-gw6nj]

The first tutorial that made me understand reduce method. Thanks.

[@sandoxs]

wonderful explanation!!! tnx for been there Mosh!!!

[@muhammadsultanularafin8846]

Wow! Explained in a super easy way. Thank you.

[@jasonkowens6820]

Excellent breakdown as usual, cool new js feature

[@toantruong9203]

Easy and simple, thank you!

[@atinukeodunsi2208]

This is soooo helpful. Thanks Mosh!

[@olumorsotnas]

Best code videos I ever watched. Thank you brother!

[@hebahamdi3855]

Thank you for making js clear and simple to understand

[@marygracegardner2843]

Thank you dude, this is incredible. I wasn't understanding this before watching your video, thank you.

[@TheRodrigocabral]

That's exactly what I needed. Thanks.

[@mustafaalawad2667]

Thank you so much, wonderful explain

[@furn2313]

Mosh is everything a newbie needs!!!

[@kudafoolhu]

Thank you. Better than any video out there.

[@rajabmuhamedrajab5128]

Finally ... some who explain reduce well .Thanks

[@JayloAbdullahi]

Thank you very much for making this clear!

[@dioncadiz]

Best method of teaching reduce method from complicated to its simplest possible form all under 10mins. You are amazing good sir. Thank you

[@whynologin]

Thank you sir for explaining this so clearly.

[@stoatanasov]

Thank you very much for this explanation . It was really useful. Keep up the good work.

[@augustineonyekachiadmiora9015]

Finally!!! Well explained in details. You’re a good man

[@newsha71]

Thank you so much. This was such a huge help!

[@beedev5197]

It was really clear explanation. Thanks a lot Mosh!

[@ahnaafarafee]

I was totally in the dark with this Reduce thing...thanks for explaining🙏 great help 👏👏👏

[@milec7092]

Wow, so clear. Thanks, Mosh!!

[@Phoenix24Leas]

This is nice but it'd be great if there was something on how to use reduce when making new objects/arrays

[@danbrown4781]

Great vid , helped me to finally jump that mental hurdle.

[@ill-fatedstranger447]

Quite Good tutorial with some good examples how actually reduce works. Keep it up

[@vedatsozen]

Thank really. I was making a project. I am adding tips of bills as % to a calculation machine and i need to sum all tips and print. At the end i succeeded by looking to your tutorial. Thanks so much.

[@xomgitsjay]

Wow, so I was trying to understand this by reading it on MDN and it was just not sinking in. This helped SO much! Thank you good sir.

[@diegodmitry]

I'm from Brazil, but you explained so well. Thanks a lot!

[@mavs4life248]

Thank you for breaking this down in detail. Very easy to understand.

[@ibrahimkedir5713]

Cheers, nice way of explaining things, I always pass ur videos when it pop ups now I watch and it's wonderful.

[@surajitdas6555]

Simply superb!!!

[@RameenFallschirmjager]

Very well explained, thank you!

[@drunkbutsober18]

Awesome explanation! Thank you for this!

[@farhanshahriar1072]

Thanks man! It helps me a lot.

[@NITESHSINGHNRS]

Best... Thank you sir...love from india.♥️

[@martinlipinski1403]

You are a king in easy explaining

[@justinlangley1056]

Literally just spent an hour trying to figure this out from reading on MDN. I understood beforehand how reducing works. I'm familiar with the concept from a few other languages, which implement it more elegantly through lambda expressions. Javascript syntax can be odd at first, and it all came down to simple syntax errors I was making.

[@lindyscolors]

This helped me so much, thank you!!!

[@Chief_Sir_E.C.O._Nwuju]

Thank you so much brother,your explanation was very simple and clear

[@justafterdark1177]

You are the best, man. Thanks!

[@psawyer871]

thank you so much!

[@md.bulbulislam2326]

Thank you so much for the beautiful explanation of reduce the method.

[@longtranbao4177]

Wow very clearly. Many thanks

[@alessandrosebastiani8021]

Very helpfull and clear as well in the explaination MDN was making me crazy. Thanks mosh! :)

[@RedBricksTraffic]

Having it explained in video form is so much easier for me than reading it. Thank you!

[@msh1830]

czcams.com/video/a_Bfu1XWGmI/video.html

[@andriyfm]

I love it, easy to learn

[@journeysalgado2972]

This made my brain hurt a lot less than the lesson I was reading. Thank you!

[@sanyogyadav3913]

thanks buddy for making concept clear

[@readingplaylists495]

You explain very well. Thanks!

[@ritsk4338]

Great video on reduce(). Thankyou you have clear all my queries and doubts

[@raphaeltaglialegna9668]

Nice class, thanks for this content!

[@aviranweb]

Tnx Mosh for perfect explanation

[@wanderimwangi73]

you have made it simple man ! kudos

[@orlandolinhares6610]

very well explained, congratz !

[@michaelrosenfeld8055]

Thank you for this awesome explanation!

[@faisalahmed9434]

you are an amazing teacher!!

[@code_fu552]

Amazing!!! Thank u for breaking it down and explaining the components . Very helpful.

[@msh1830]

czcams.com/video/a_Bfu1XWGmI/video.html

[@anthimonebrahim9507]

thanks, for your clear explanation

[@carlosduque8767]

This was great! thank you

[@vikaskad5737]

one of the best explaination I ever watched

[@biplob9764]

You are awesome Mosh!!

[@Developerorium]

simple and great explanation Mosh.

[@BURN-ADDiCT]

Nicely explained, thank you

[@valtallica]

Dude this is the best. Thanks.

[@BrandonSWie]

Hi, Mosh. It was really helpful. Thanks.