Javascript Promises vs Async Await EXPLAINED (in 5 minutes)

In this tutorial I explain what Javascript promises are, why we need them, and how to use them, catch errors properly and then convert the same code to use async and await. With examples!
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#javascript #promises #async

[@atatdotdot]

2:25 "Then is called when the task completes... the catch method is called if anything goes wrong". This is wrong. These methods are called immediately. It's the functions that you pass to them that are called on those conditions. This may sound like pedantry but I would strongly suggest anyone trying to learn this to fully understand the distinction here.

[@RDT]

Good catch, thanks. Pinning this comment.

[@paulhetherington3854]

Only if - there be - () call f(x) - pre amp d(x)! It never did - ught yet?

[@jellyjollyjelly9513]

"It's the functions that you pass to them that are called on those conditions. " what do you mean by "on those conditions"? do you mean the functions passed to then() and catch() are called after the task completes? im confused about this sentence

[@mattpickel223]

@@jellyjollyjelly9513 I think he is saying the method 'then' is called immediately when that line is executed. It is a method of a Promise. It binds a callback function that will be called when the promise returns fulfilled. 'The 'then' method is called when the task completes' would be wrong and should be 'The callback function passed to the 'then' method will be called when the task completes'

[@sergioadame5528]

the .then anc .catch methdos being called inmediatly ever affects something? why giving the distinction between the execition of the methods en the code inside it if nothing will happen until the promise es fullfield? i guess there is something but cant thing of a case

[@dub161]

this is what I call a perfect 10/10 explanation. "Crisp" and at the same time complete information with example.

[@RDT]

Thanks for your kind words and support of the channel Nakshatra

[@lecomar7220]

@@RDT The tutorial was beyond. It was quick BUT delivered ALL the information I was looking for. Thank you so much Roberts Dev Talk, wow!!!!!!!!😮😃😍

[@omdodmani3205]

Yeah! Example Makes it way easier to understand compared to just explaining the theory.

[@joelmounts3336]

hugely underrated. so few channels are 1. this well edited AND 2. this well explained

[@RDT]

Thank you that means a lot to hear 🙏

[@vladpanchuk4699]

agree

[@SoraJustAGuy]

It’s important to point out that working with multiple apis you often have to chain multiple promises resulting in callbacks nested inside callbacks nested inside callbacks nested inside callbacks…you get the idea. 😅This is what we call a CALLBACK HELL. So the primary reason async/ await exists is to avoid a callback hell

[@RDT]

Absolutely 👍🏻

[@babykosh5415]

This is what I was looking for...thank you for asking this!

[@Ketan2555]

@@kkdpsudpsu Promise.all is not suitable when you need to ensure the first API call's response is available before making another API call that relies on it.

[@mohamedafrid1349]

I just want to call another api using first call's result. What method I have to follow ?

[@mohamedafrid1349]

By the way, i am using subscription for the first call

[@dom9534]

dude this just made so many lightbulbs go off in my head and tied so many things together for me. thank you

[@RDT]

Thanks! Glad to hear it helped - I hoped it would do 🙏

[@mattmcrae]

Umm... This is by far the most simple and logical explanation of this topic I've seen. In five minutes I've gone from writing code I didn't understand to totally getting it. Thank you!

[@RDT]

Excellent!

[@hamzadlm6625]

The first person I watch to not explain 1 phrase using 20 phrases, neat and straight to the point! thank you.

[@nelsondasilva3935]

perfect: short and sweet.. no fluff or dragged on and on examples.. 10/10

[@onepointproduction9092]

Good lord, it's the most clear explanation i've ever watch. Thanks bro

[@chrislione950]

Wow,this is hands down the best explanation of this topic. Thanks alot

[@sadhappy8860]

I find that alot of 'programming words' are quite strange. It may sound complicated but it just needs someone to use the right explanation and then it clicks. A very helpful video, much appreciated.

[@ChaDaeyeob]

After struggling with various definitions of async/await, I stumbled upon this video which made everything crystal clear. Thank you so much Mr. Sir Roberts for simplifying things!

[@RDT]

You're very welcome!

[@kunikaingale4704]

bruh why so underrated?! Such a marvellous explanation, straight to the point

[@wassimmouloud3432]

the way you explain things is just perfect

[@jacintdavid5333]

Watched async videos of bigger channels first and I have to say yours was superb!

[@RDT]

Thanks, that means a lot to hear 🙏

[@mushroomthump]

I was so confused about this, cleared it up for me, thanks!

[@venkateshak.s9290]

Very neat n crisp information without any extra buzz! 🤗👏

[@vegeta4614]

This is really helpful. Will go through all ur javascript turorials now

[@eidercarlos6391]

Great! The best explanation about the topic I've seen! Thanks!

[@mikehillbilly4079]

Concise, precise and nice. Excellent!

[@PerryCS2]

I really like how you add the code to the video AS you explain it... helps break things down...

[@InderjeetSingh-zm3sf]

Loved the explanation....it helped alot thanks!!!!

[@mehmetbulut1553]

After months of struggle finally understanding Promises thank you so much Robert. Definitely subscribed 🥰

[@RDT]

Thanks for the sub Mehmet! Glad the video helped you 🙏

[@bennythetiger6052]

Oh my God!!! This explanation is perfect! I was really struggling to understand both promises and async functions, but now I see it all! Thank you so much!

[@huangtiantian8770]

Thanks! This is the best video explaining await and promises I have ever seen

[@GovindYaswanth]

Had listened to lot of videos and read articles. But Wow!!! Yours is best explained and perfect real time example... Love it Man!!!

[@wheatley-digital]

Really great video. Been stuck on this topic but makes total sense now!

[@AbhishekTiwari-xt1kt]

Wow, nicely explained, short and sweet No BS

[@joepage3065]

Very clear and concise explanation. Thanks 👍

[@JasperEjoc]

of all the videos I watched, this is by far the most simple explanation of promises then, catch vs async await, thank you for this video

[@RDT]

You're very welcome!

[@chrisstrauss7288]

Best explanation iv seen on this to date. Cleared up a lot for me

[@Nneoh1]

Phenomenal explanation, thank you!

[@user-yy4pd2vu2v]

Great explanation. Thank you!!

[@Jeremiahking101]

This literally made my day! THANK YOU!

[@djrmarketing598]

This was a great explanation. Despite programming for 25+ years, I've used Promises a ton in JS and C# I've used promises there too and never really understood that await/async was basically the same thing just sequential. 5 stars on your explanation!

[@RDT]

Thanks

[@user-nd7sk2ph4f]

Thanks a lot for this great tutorial🎉

[@jalalkhan3166]

Promises & async await ARE PROUD OF YOU. such explanation💛

[@RDT]

Thanks 🙏

[@normanluismadrid422]

beautifully explained, thanks for this

[@svalyavasvalyava9867]

Thank you infinitely for the clear explanation 😊

[@keyvanhosseini3518]

This video was so useful, thank you for creating it. 🙂🙂

[@MichaelKim505]

Truely helpful and insightful explanation on Promise with good examples.

[@tassneemaltaf2001]

Loved the explanation

[@samichosen524]

Amazing presentation and great explanation, thanku

[@tanjimulislamsabbir857]

This is very clear and organised video. I loved it.❤

[@wtf_jokes9639]

What an absolute break down. I wish all teachers had the touch to teach like you

[@XX-vu5jo]

LOL he taught it the wrong way LOL!!!!!!!!!! you are clearly learning from wrong content, poor guy

[@richk5015]

Thank you, Chris, for explaining everything so eloquently. 🙏

[@RDT]

My pleasure!

[@kashix.]

This is the best explanation with the best examples I've ever seen about async in Javascript. Thank you very much!!

[@RDT]

You're very welcome!

[@danglad5546]

Great simple explanation, you are very good at it.

[@returnMarcco]

Thanks for the video Rob

[@jakub2631]

Great explanation, thank you!

[@awaraamin6850]

Great job! it demystified the whole idea!

[@philipackerley5775]

Superbly put together Chris, never heard or seen it explained as well 😇

[@RDT]

Wow, thank you 🙏😊

[@returnMarcco]

It's Rob

[@baderelhayah7961]

Thanks for the video, this is very helpful

[@josecarlosgarcia6477]

this is the best explanation on KZbin, Thanks

[@DamianDemasi]

Great explanation! Thanks for the video :)

[@Aziz-kw6ct]

Your explanation was perfect, thank you for the effort.

[@RDT]

Glad it was helpful!

[@gravitasfolly8615]

Excellent tutorial. Made it so simple

[@user-jb3dz6pp1o]

This explanation was amazing. It was not complicated at all. Thank you.

[@RDT]

You're very welcome!

[@ajsim]

Great explanation. Thank you very much!

[@francodominguez238]

This is the most beautiful explanation I've ever heard, thank you

[@RDT]

Thank you! 🤩

[@KerishaStewart]

good refresher! thanks much!

[@FailNTry]

One of the best video i watched in 5 mins well done ❤

[@alisonoz7219]

excellent explanation!! thank you so much!!

[@roebienarnaiz]

Concise! Great explanation.

[@backtic_education]

Verrrrrrrrrrrrrry good explanation. Thank you so much.

[@supernova82]

This is great. Well done!

[@tamimabdullah3624]

the explanation was really helpful!

[@zaeemjaved6850]

BEST VIDEO ON THIS TOPIC! PERIOD!

[@amityadav-np1rk]

Very well explained!! Thank you 🙏

[@elobro9612]

I'm a fresh graduate and currently working as a junior full-stack developer. I'm having a hard time learning the Promises and Async and this video really helps me a lot. Thank you so much!

[@leoMC4384]

You had hard time learning Promises and you were a fresh graduate??? WTF?? You're a student having a hard time as a Project Manager now?? 😂😂😂

[@elobro9612]

@@leoMC4384 I'm a Senior Full Stack Dev now. Yey! 🥳🥳

[@XX-vu5jo]

LOL he taught it the wrong way LOL!!!!!!!!!! you are clearly learning from wrong content, poor guy!!

[@lakshmanchoudhary020]

This video is really underrated, straight to the point in 5 minutes. Appreciate your efforts.

[@RDT]

Thanks 🙏

[@raziqijr]

this was one of the best explanation of async and promises !

[@idanhen10]

Amazingly explained!

[@Reaper_f30]

coffee example is one of the best clearest ones ive seen man :D

[@RDT]

Thanks glad you liked it mate 🙂

[@Noraia]

Best video about promises I watched so far!

[@elisamunozespineira6809]

super well explained, I have watched tons of videos and I finally feel like I understand it!

[@RDT]

Thanks Elisa, glad it was helpful to you 🙏

[@d0m2288]

Great explanation, thank you.

[@thishandharmakeerthi5327]

Hands down, Quality content 10/10. I subscribed the channel.

[@jenkov2155]

Been a bit confused about the promises, async await, and try catch thing. But not anymore. Best explanation :D

[@DnKZone]

thanks it's really clear to me what promise in js is

[@TriNguyenuc-jc3fp]

Phenomenal explanation! You make my day sir

[@RDT]

Glad you liked it! Thanks

[@zhaofour9833]

The best explanation so far only uses 5 min and easy but illustrative example

[@vampirekabir]

well edited and well explained!!u deserve million subs

[@RDT]

Thanks! We agree 😅

[@Sammy-km9zk]

I love these kind of explainations

[@DipanjanPatra]

Cleanest async/await explainer!

[@nadeeshapiushan8468]

This really helped. Thanks!

[@somtoilo7465]

This is perfect! Wow best explanation I've come across

[@RDT]

Wow, thanks!

[@kadidibwa968]

Clean and precise explanation

[@oah8465]

That was really smooth. Thank you.

[@RDT]

Glad you liked it!

[@nerdy561]

Best explanation video out there!

[@bartomiejsadecki8309]

Briliant video, very simple and easy to understand, it's nice that you're comparing the two in one short video. Thank you!

[@RDT]

Thanks for your kind comments and support

[@loydcose2780]

That was short and simple, thank you!

[@RDT]

Thanks for your support Loyd

[@tlilimourad5671]

Perfect explanation

[@sanampakuwal]

Really smooth, subscribed!

[@RDT]

Thanks Sanam

[@jardelnunes6363]

such an awesome tutorial!!! thank you

[@paulomarques9746]

Amazing video, straight to the point. Thanks and congrats! 👏🏻 +1 subscriber

[@mahdishirazi5785]

this video is literally GOLD

[@leonardmbibi8013]

Well summarized, thanks

[@YaBoiDallin]

I've been trying to figure out promises and async for days and it finally makes sense. Thanks!

[@chiomauche2138]

perfect explanation!