Typescript Functions | Basics Tutorial for Beginners

[@DaveGrayTeachesCode]

In this tutorial, we'll learn about Typescript Aliases, Functions, literal types and the never type. If you have questions, please join my Discord server where I answer questions and you can chat with other web dev students: discord.gg/neKghyefqh

[@smithahegade2607]

No waste of time.. Every bit of 30 minutes is soooo useful. Thanks a lot

[@alseynidiop8650]

This comes exactly at the time I am learning typescript, you become my favorite KZbin teacher.

[@DaveGrayTeachesCode]

Happy to hear that!

[@Scottni2]

Awesome video Dave!! You are very quickly becoming my favorite web dev teacher on youtube!

[@DaveGrayTeachesCode]

Wow, thanks!

[@EsmerEshraty]

not only yours, if i don't know about some thing first Dave come to my mind and i say oh I should check Dave's chanel first

[@flowerofash4439]

this is probably infinitely more easier than scrollling through typescript documentations, thank you sir

[@DaveGrayTeachesCode]

You are welcome!

[@insteresting]

Awesome tutorial as always!! I noticed that at 30:58, you could also return directly typeof value === 'number', without explicitly using the ternary statement and it would work fine as well.

[@annusingh4694]

Loving the Typescript series 💯

[@DaveGrayTeachesCode]

Thank you!

[@ahmad-murery]

Although I don't use it often, but once you get used to typescript it's hard to get back to regular JavaScript. 1:42 I think we can make use of the already declared type stringOrNumber like this: type stringOrNumberArray = stringOrNumber[] Thanks Dave,

[@DaveGrayTeachesCode]

Absolutely! Applying one example to the next - good work my friend!

[@MOJICA7257]

Thanks Dave! 🙂

[@DaveGrayTeachesCode]

Welcome! 💯

[@k303k]

very clear explanation and worth learning!

[@mostafaentezami8951]

Thank you for your excellent teaching method🙏

[@natediaz406]

When i see your these tuts , i feel ts is really need to use

[@wisekid7488]

Good job Dave! Keep going! Thanx 🤝👍

[@DaveGrayTeachesCode]

Thanks, will do! 🚀

[@mariolazzari]

This lesson is really full of useful tips: great job!

[@DaveGrayTeachesCode]

Thank you!

[@andresbreuer]

As always Dave... amazing series!! Thank you so much!!

[@DaveGrayTeachesCode]

Thank you, Andres!

[@rahmatyousefi8273]

Thank you

[@DaveGrayTeachesCode]

Welcome!

[@TravinskiyVladislav]

Thank you, Dave

[@DaveGrayTeachesCode]

You're welcome!

[@sonamohialdin3376]

Amazing tutorial thank you very much

[@DaveGrayTeachesCode]

You are welcome!

[@lahcenaouina]

Hi dave thank u so much for effort u are from my fav yt , please can u do Java EE and Spring boot pleassse

[@7doors847]

Yepppppp! More TS 🔥!

[@DaveGrayTeachesCode]

Right on!

[@noSweatSuperDry]

The lessons are great, but it would be great, if you gave us some problem in between to solve, which makes channel and viewers more interactive. But, thank you very much for your lessons.

[@IramKahkashan]

Hi Dave, Thank you to provide such a precise and awesome tutorial, Tell me one thing plz in VS Code I want to view the basic code of .push function, how can I view the source code of .push function or any function just like useSate() hook function or any other hook?

[@moneyfr]

Thank you for your work I really like your videos.

[@DaveGrayTeachesCode]

Glad you like them!

[@Grishopping]

Thank you DAVE day by day I am advancing with your excellent pedagogy of your videos... A query the end of this series of TYPSCRIPT videos will only cover javascipt or do you plan to extend it to use in REACT Jose Grillo greets you from Venezuela ESPAÑOL Gracias DAVE dia a dia voy avanzando con tus excelente pedagogia de tus videos... Una consulta el acande de esta serie de videos de TYPSCRIPT solo cubrira javascipt o lo piensas extender para usar en REACT Te saluda Jose Grillo desde Venezuela

[@DaveGrayTeachesCode]

Thank you, Jose! I will bring in some React before this series is finished 💯

[@Grishopping]

@@DaveGrayTeachesCode Excelente muchas Gracias amigo DAVE

[@siddiqahmed3274]

gold content👑❤️

[@DaveGrayTeachesCode]

Thank you, Siddiq! 🙏💯

[@aladdindesign9218]

So interesting.

[@PavithranLion]

Thanks sir🙏💕

[@DaveGrayTeachesCode]

You're welcome!

[@LevPleshkov]

31:00 Why not just ``` return typeof value === 'number' ``` ?

[@DaveGrayTeachesCode]

Good point - here I go again being over-explicit 😆

[@LevPleshkov]

@@DaveGrayTeachesCode Thanks, I think that's never a bad practice! I thought there might have been some 'gotcha' I didn't know about =D

[@reeteshvirous1359]

As always 🔥

[@DaveGrayTeachesCode]

Thank you!

[@djumarong]

it's redundant to use the ternary operator here: typeof value === 'number' ? true : false

[@DaveGrayTeachesCode]

I can be overly explicit at times. I would need to review the code to see the example or you could provide a timestamp.

[@moneyfr]

can you do some small exercises to apply all that you teach us

[@DaveGrayTeachesCode]

This series has a couple of projects to pull everything together.

[@loukhai]

😊 ✌️ peace

[@dzhaniivanov5837]

youtube algorithm

[@kim92se64]

watching 15 minutes

[@DiegoBM]

They shouldn't have allowed the interface with a method to be valid for a function signature... it sure looks hacky, counterintuitive, and hard to read

[@DaveGrayTeachesCode]

Opinions vary on the usage of types and interfaces.

[@DiegoBM]

@@DaveGrayTeachesCode I definitely get the confusion when it comes to objects, but a type definition for a function signature based on interfaces truly feels unnatural (in my opinion, of course)

[@Pareshbpatel]

{2023-03-16}

[@kenansari]

Hey thanks its great content, i wonder you will merge it with React?(react+typescript)

[@DaveGrayTeachesCode]

I will add some React to this series before it is finished.

[@kenansari]

@@DaveGrayTeachesCode thank you for your help

[@mikayilaliyev442]

I get "Cannot find name 'createError'.ts(2304)" when I do return createError('something')

[@DaveGrayTeachesCode]

Did you try the first result in Google? stackoverflow.com/questions/71918235/cannot-find-name-createerror-ts2304