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 !

[@tung01vuongtri33]

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

[@RetroRick1990]

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

[@clarinetisfying]

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

[@msh1830]

kzbin.info/www/bejne/l5Cll6hnjbx6o6s

[@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]

kzbin.info/www/bejne/l5Cll6hnjbx6o6s

[@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.

[@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

[@onyeukwuhycient438]

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

[@opasceptre]

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

[@timilehinoni]

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

[@harwinderthakur9708]

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

[@aiknowledge-n2s]

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

[@alvarosena858]

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

[@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.

[@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!

[@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

[@EnricMartin1987]

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

[@rajabmuhamedrajab5128]

Finally ... some who explain reduce well .Thanks

[@mavs4life248]

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

[@MatchesMaloneThe3rd]

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

[@furn2313]

Mosh is everything a newbie needs!!!

[@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.

[@nashpaints]

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

[@marygracegardner2843]

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

[@RedBricksTraffic]

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

[@msh1830]

kzbin.info/www/bejne/l5Cll6hnjbx6o6s

[@olumorsotnas]

Best code videos I ever watched. Thank you brother!

[@glantzdesign6239]

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

[@dioncadiz]

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

[@millertime6]

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

[@diegodmitry]

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

[@slickchick8292]

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

[@md.bulbulislam2326]

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

[@ryansatriayudha]

This is very clear and simple explanation!! Thank you very much 😊

[@j.k.ravshanovich]

Explained better than MDN. Good job!

[@hebahamdi3855]

Thank you for making js clear and simple to understand

[@muhammadsultanularafin8846]

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

[@mariodmp]

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

[@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.

[@kudafoolhu]

Thank you. Better than any video out there.

[@brain8893]

Wow this guy is simply the best and you cannot dispute that

[@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!!!!!

[@Chief_Sir_E.C.O._Nwuju]

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

[@nidhikumari4983]

thank you for explaning the basic concepts very clear...best explanation

[@АннаАгабекян-ю8т]

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

[@Phoenix24Leas]

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

[@cbehen]

actually, it must be accumulator += currentValue but just + works here maybe because of reduce method is holding the current value in memory for every iteration.

[@sinamohammadi970]

Lovely explaination and lovely Mosh. We Love You Mosh, From Iran.

[@vikaskad5737]

one of the best explaination I ever watched

[@ayromo7]

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

[@sogggy]

i just bought a 100 algorithms course from udemy.com. I prefer the way you teach. You explain everything thoroughly, the course instructor seemed to rush through the videos.

[@muthukumar8009]

great explanation Mosh.. [...Array(1000)].reduce((acc, elem) => { return acc + 'Thanks Mosh '; }, ['Great Explanation ']);

[@ycombinator765]

Amazingly clear!! Functional Programming is the best ❤️

[@msh1830]

kzbin.info/www/bejne/l5Cll6hnjbx6o6s

[@katebekatuka3447]

This explanation is way better than the documentation.

[@EssensOrAccidens]

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

[@bevedel]

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

[@floridaman7]

This is a better description than coding academy.

[@ernestj8000]

Excellent explanation of reduce function.

[@ahnaafarafee]

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

[@perfectionchizuruoke6207]

Thank you mosh you explained it perfectly

[@nadeerahashankuruppu5962]

Thank u for the great explanation let num = numbers.reduce((a,c) => a+=c ,2)

[@OMARCODER-zz4si]

as usual, you make coding easy ...your explanation is great

[@msh1830]

kzbin.info/www/bejne/l5Cll6hnjbx6o6s

[@shehryar11yaqoob35]

Such A smooth Explainer

[@sanyogyadav3913]

thanks buddy for making concept clear

[@drunkbutsober18]

Awesome explanation! Thank you for this!

[@readingplaylists495]

You explain very well. Thanks!

[@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.

[@andyarellano7474]

The best teacher so far

[@martinlipinski1403]

You are a king in easy explaining

[@wanderimwangi73]

you have made it simple man ! kudos

[@legitMeastro]

You are the best instructor mosh

[@subhashgn1775]

Very well explained. Thank you.

[@Pareshbpatel]

Nice explanation of the Reduce Method of arrays. Thanks, Mosh {2021-08-14}

[@marcinkalmar9964]

very easy to understand by good explanation

[@ibrahimkedir5713]

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

[@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.

[@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.

[@Developerorium]

simple and great explanation Mosh.

[@journeysalgado2972]

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

[@anthimonebrahim9507]

thanks, for your clear explanation

[@redone2728]

Simplicity is always key!

[@code_fu552]

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

[@msh1830]

kzbin.info/www/bejne/l5Cll6hnjbx6o6s

[@longtranbao4177]

Wow very clearly. Many thanks

[@PatrikRasch]

Thank you for the good explanation and help.

[@Sanyat100]

He the best teacher on the internet

[@niwanthakaweragoda9480]

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

[@sdwhitesox8039]

"Just check MDN" does not help. These videos are the only things out there that actually explain anything. Thanks Mosh.

[@pranjalruhela1103]

Accumulator, current value (through iterations) and initial value

[@augustineonyekachiadmiora9015]

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

[@bhavanachavan164]

interesting ... i like the way u teaching explaining...thank u so much....and keep it up....

[@saleema6308]

Brilliantly explained.

[@priyamganguly]

Very important topic explained easily.

[@willemojnr]

Nicely explained, thank you.

[@danbrown4781]

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

[@praiseb2god724]

Excellent and simplified. Is this method not called object deconstruction?

[@NITESHSINGHNRS]

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

[@albertt755]

It was explained pretty well.

[@alejandrocuevas8999]

You’re the big boss. 😎😎😎 I went through other websites and videos but your explanation was the best. Thank you very much! I had the answer all time at home, since I was subscribed to your channel before. 🤩🤩🤩

[@shrutijain3142]

Simple yet the best ....

[@kamleshbisht9811]

nice explanation please do explain how the fuction and codes work it will be very helpful thanks