How To Build Your First TypeScript Project - TODO List Application

It is finally time that I create a full TypeScript project. In this video I show you how to create an entire TODO list application in TypeScript. I also show you how to get started with TypeScript in both a basic and advanced way.
📚 Materials/References:
GitHub Code: github.com/WebDevSimplified/t...
Node Download Video: • Your First Node.js Web...
Optional Chaining Video: • 5 Must Know JavaScript...
Optional Chaining Article: blog.webdevsimplified.com/202...
Should You Use TypeScript Video: • Is JavaScript Dead?
🌎 Find Me Here:
My Blog: blog.webdevsimplified.com
My Courses: courses.webdevsimplified.com
Patreon: / webdevsimplified
Twitter: / devsimplified
Discord: / discord
GitHub: github.com/WebDevSimplified
CodePen: codepen.io/WebDevSimplified
⏱️ Timestamps:
00:00 - Introduction
00:49 - How To Install TypeScript
02:10 - Basic TypeScript Setup
06:01 - Bundler TypeScript Setup
10:30 - How To Build The Todo List App
#WebDevelopment #WDS #TypeScript

[@dechobarca]

Hey Kyle, great to see you covering some TypeScript. I would definitely be interested in future videos if you decide to cover more advanced topics. Cheers!

[@19cornholio90]

This was a perfect intro tutorial for a TS project. I followed along the tutorial, and then wrote down the steps I took. The next day I created the tutorial based on these steps. Then the next day I created it from scratch. Great learning experience. Thanks!!

[@spoodermen2530]

dis is da weh doing thing from memory is really good, makes you remember it for a long time when we recollect and do things

[@lucydelaluna]

You're such a great teacher. Highly appreciate your content and ability to explain things so simply.

[@njo_lv]

Loving these project tutorials. I am learning both React and TypeScript and your videos have been gold. The fast pace challenges me to keep up. Thank you for the clear and concise content. 👏

[@256k_]

this was a great intro for me, i watched many videos going into a lot of theory, but seeing it in practice and seeing right away the linting and error warnings and how the code is a lot more reliable like people say. thank you

[@hachapacha5081]

dude this tutorial is so useful.i have try to learn typescript for a long time but I couldn't find a clear tutorial. you killed it man. please make more.

[@darkjedi6614]

LOVED this tutorial! Very informative and very easy to follow! Thank you so much. Like the others, I would love to see more TypeScript tutorials. If possible, some centered around API usage please. I'm still learning TypeScript and this tutorial helped me so much. Thank you! :)

[@swapnilkuwar7040]

When you're going to give guitar lessons?

[@Vyse86]

Yes...been wanting a nice quick TypeScript tutorial. Thanks!

[@kasopejohnson3831]

Really great simple hands-on application of typescript for practice. One thing I noted, when the browser threw an error trying to run module syntax, it was actually because you didn't specify the type of the script as "module" in your script tag

[@HHJoshHH]

Yay I got all the way through it this time! I'm so pumped that I was able to do this so fast. I've been working hard to get this far. Thanks Kyle. You rock man.

[@taroserigano6546]

Awesome Kyle! I was waiting for Typescript projects!

[@kraxen72]

great tutorial. please more typescript ones, for example how to properly define interfaces, types and set up definition files. also please try svelte (with vite or sveltekit)

[@scottlexium]

You just made me love typescript 😂, please do a playlist on it for beginners

[@RC-14]

A video about all of the configs would be nice.

[@tejaswan]

I have just planed to learn typescript. and u made a video on typescript 👏

[@marcelobrasil-developer8678]

Great video as always!! Keep it up with the Typescript!

[@DennisVeeMusic]

What a great lesson! Thanks a lot!

[@simpleedge]

Woah! I finally get why typescript is so amazing!!!! It preemptively exposes possible errors in your code before you deploy! 😱😱 This is 🔥🔥🔥🔥

[@develxper7931]

Thanks very much , i really appreciate your content , you literally simplify complex things

[@DragonWhisky]

Thank you, Kyle. I enjoy this short course.

[@DonWeaita]

This is just what I need it, nice timing.

[@Working800]

Great video as always, I'll definitely try it

[@r4rbit]

I followed this tutorial to create my first web app ever. Little did I know, it would also make creating my first Angular project so easy (Tic-tac-toe by Fireship). I've learned so much with your videos. Thank you for being such a great teacher and for sharing what you know Kyle. Greetings from El Salvador!

[@ajsyt]

Or just use npm init vite and select vanilla-ts ⚡

[@oggy107]

vite is 🔥

[@beinyourguard]

vite is really cool

[@AmodeusR]

The best!

[@ccedev]

I switched from webpack to vite, and I never want to go back. I tried Svelte for my portfolio development, and I don't want to change that. Some tools are overrated, but many are amazing.

[@haythamkenway1561]

Vite is garbage. for couple seconds faster compiling time, you have to always and always configure the module bundler. folder structure is also inconvenient. and lasty, why the hell I need to install module bundler plugin to add PWA functionality to my project? you can literally have PWA on vanilla js project without any kind of plugin. it is fast because it has nothing inside of it and you have to reinvent the damn wheel.

[@mrFighter924]

Finally someone locally do it! Thank you!

[@Marty72]

Best demonstration of the benefits given by using TS

[@firstname-lastname]

Hands down, best small TS intro ever :)

[@codingislove3707]

nice! an advanced typescript project would be awesome. also a bigger reactjs typescript project would be sweet! thx

[@jonsson7460]

agree!

[@shadmanfatin777]

*Really excited to see you reaching 1 Million Subs Kyle brother*

[@27sosite73]

Kyle, you are THE LEGEND thank you!!!

[@aravindgop1]

That was a quick and a very good video... i have been following you for a while now and I am eager to see your desk setup and other cosmetic stuff behind the scenes which usually any other youtubers would have posted a hundred times :)

[@Niksorus]

Amzing intro, I would love more!

[@lookwhoneedsahobbie]

This is awesome thank you for this 🙏

[@enriqueruiz320]

Justo lo que buscaba... pocos tutoriales de estos 🤯🤯

[@shozdott]

You crack me up lol , love how you impliment shallow concerns even ... " You can make changed to this If you need , If you want to like know how this works " lol

[@belkocik]

NICE! Looking forward to more TS! :)

[@user-mo3cw6go7c]

You make it simple. Thanks ❤❤

[@Salah-YT]

thank you so much

[@kurdmajid4874]

amazing video helped me understand typescript way better.

[@khoinguyen-ft2ys]

Thanks for your video. Please make more videos about typescript, especially videos about type, convert type, generic type, error with type... JavaScript is not dead, but today a lot of people write code using typescript so I think you should add more videos about it

[@jakeedgar3076]

Would love more typescript!

[@chiroaksun8737]

PLS MORE TYPESCRIPT... Very nice content thank you very much, i learn a lot with your tutorials :D

[@cbsaikumar]

Loved it, also Please cover some advanced concepts like generics etc

[@xtraszone]

Nothing is more exiting than starting a typescript project 😁

[@faizanahmed9304]

Yeah

[@robertoacuna4667]

wow amazing thank you

[@crim-son]

Awesome content kyle💪

[@imigi427]

Thank you for that tutorial

[@StrayKev]

I have been waiting for this.

[@adairoreyes1644]

I loved it, please make more TS content :)

[@yazhini513]

Thank you!!

[@bryson2662]

Woot! Kyle doing typescript.

[@sadullahtanrikulu]

Thank you, very useful video, i got a plenty of benefits. :)

[@mahmoud-bakheet]

Thank you ❤❤❤

[@thursmornsunlight]

This looks great. I have no idea why I have this right-click error. But I am sure it'll work on other computers LOL. I am always getting errors when I follow tutorials. Ha! Uncaught TypeError: event.cancelBubble is not a function at HTMLDocument.bringBackDefault (new_rightclick.js:87:31) Thanks for the videos! Hope to see more typescript videos!

[@noobbot7392]

would definitely love to learn typescript as now i am seeing javascript wouldn't provide much design patterns in backend development

[@captainom5065]

Ur great thanks

[@broadshare]

I like typescript, please do more projects on typescript

[@mohitmohlia8420]

YES YES YES MORE TYPESCRIPT TUTORIALS !!!!

[@michaeldoh9069]

Web Dev Simplified as advertised 👍

[@outhwithauldraft5979]

9:24 wait hold the frickin' phone for a second. how does NOT give an error? the dist folder does not exist nor does the index.js file. what is this magic?

[@alvaprince4726]

I agree. Even when it is manually created tsc doesn't spit the index.js out into the dist folder. So how is he getting it to work??

[@halestormtv]

I resolved by Ctrl+C to cancel in terminal, then re-run with npm start. Then my html had the HI msg in the console output.

[@arifinoid9936]

More typescripts please 👍

[@typicalmolly7737]

godly tutorial man

Good Jobs 🤟🏿

[@suryapratapsingh5149]

as usual great video, I Need to understand generics completely so please bring up some videos if your time permits.

[@thevividversatilechannel4807]

@13:36 That is a type assertion (`as` syntax) You can use `document.getElementById("new-task-form")`. This is the same as `document.getElementById("new-task-form") as HTMLFormElement`. @15:00 You can use the non-null assertion operator if you are sure that what you are using is not null and not undefined. This is an exclamation mark (!) and is used after an expression. When creating (no need to use this operator afterwards): `const input = document.querySelector("#new-task-title")!` When using: `input!.value` Note: this is removed in transpilation and is just to make TypeScript happy.

[@kevyyar]

thank you that works. This KZbinr never responds to comments but it helps people who read them.

[@augustocapeto8444]

thanks! changing the 'const form' fixed everything here (page was reloading even with preventDefault, wasn't adding tasks nor saving them)

[@neo9117]

more vanilla js & ts videos please this really helps me

[@raitaskeen]

Hello dear please make more TS projects like this your efforts are amazing 🥰

[@faizanahmed9304]

Yes, we would love to see more tutorials on Typescript

[@ankittyagi1178]

Love you man

[@slashd]

Great video, I learned a lot from it! Also, is there any Svelte video's coming soon?

[@bekagray837]

Please make more TypeScript tutorials!!

[@kuroexmachina]

sheeeeeesh he finally decided to join the TS elite gang

[@alvirarahman1559]

OMG, can u make a TS Project series? One beginners project, and then go slightly advanced to really advanced? That would be brilliant.

[@kevin3495]

you can pick any normal js beginners project master it and try to build it with typescript

[@eles108]

Thanks. You may give more TypeScript.

[@Berserkaroid]

Great video introducing typescipt. My only comment is when you are typing console commands (like npm), don't have the input line at the bottom of the video as the youtube timeline blocks it when the video is paused.

[@TheScriptingLegend]

Would love to see how to use react with typescript

[@hikari1690]

Any tutorial from you is good. I feel my single dead braincell reviving with every video I watch. At this rate it might start working and maybe even multiply so I can finally have 2 braincells to rub together

[@geneee]

would this work in the loadTasks function? function loadTasks(): Task[] { const taskJSON = localStorage.getItem("TASKS") as string return JSON.parse(taskJSON) } basically type assertion.

[@ibrahimyoussef4489]

I will be happy of Kyle make many games with vanilla Typescript

[@techvidsnet]

Hey Kyle thanks for the video. I have a question. bind checkbox on change on newTask event that was called on submit when item is pushed to array how that checkbox still bind to the value

[@AlexCernat]

great video, thanks! just one question: I saw that you used == in ts, or in javascript the recommended comparison operator in === (to exclude type coercion and unneeded side effects); should I assume that ts compiler "transforms" ts == into javascript === and == is the right operator in ts?

[@justSomeUserOnYT]

JavaScript is interpreted, not compiled. Typescript is simply transpiled into JavaScript. However I don't think the transpiling would replace a == for a ===

[@konnichiwa01]

@@justSomeUserOnYT do you know how to remove a to-do. example to delete a single to-do

[@chinmayghule8272]

If you're using Vite and you get an error when you create a vanilla typescript project and try to run it, trying deleting the project and starting again or re-installing the packages 'Vite' and 'Typescript'. In my case for some reason when creating the project using Vite the 'Vite' library wasn't installed properly, and the problem went away after I installed it again.

[@compncheese8358]

* Me copying and diving into deep details with every line of code Simplified does* Simplified: We will be delteing all this Me: 🙂

[@ztamnaja]

so cooooool

[@rishabsharma5307]

Typescript is 🔥

[@enginvolkan]

Hi, thanks for your nice videos. I'd like to ask if you have any idea about the "'tsc' is not recognized..." problem. I tried everything on the net and cannot solve it. Thanks.

[@user-gi6yc5nu6g]

Hey, is there a reason that you writing your functions in the old way instead of arrow functions ? thanks

[@irvingmontero5653]

I think it's because arrow functions are not hoisted. Hoisting basically puts all declarations of variables and functions to the top of the script at runtime. That's why you can invoke a function before declaring it.

[@hoyinli7462]

finally you start using TS!

[@imperror555]

TS must have in any new projects

[@captainom5065]

Pls make one with pure javascript and sevelte

[@pscheung206]

I got a little confused by the setup instructions after when it looked like the app was setup, then deleted then setup again with a new command. Does the cmd line action `npx create-snowpack-app . --template @snowpack/app-template-blank-typescript --force` ...completely take the place of the prior npm setup in the tutorial? 'npm init -y' and 'npm i --save-dev typescript' ? Thanks!

[@abhinavjha3082]

Yep, it completely takes place of those two commands

[@WispOfSoul]

if you plan on doing a project like this, please note, snowpack is no longer maintained please don't use it, instead use something like vitejs, parcel, rollupjs or esbuild

[@kevin3495]

yea, but the point of this video is litteraly just how to get started with using typescript this will work with other package bundler

[@tomasburian6550]

When it comes to TS, we've done this type of projects to death. I'd appreciate something that deals with async functions or something more complex.

[@jameswan2963]

Can a snowpack project be host under nodejs?

[@DJ_Melech]

at 4:13 you show the console with "hi 2" but how do you launch the dev server to get the app running in our browser? I can't see "Hi 2" in my console when I try and open the index.html file in my browser.

[@catafest-work]

can you tell me why you don't have a dist folder build with tsc command because I don't see the booleans inputs from HTML and I don't have errors on my project. Also I used your github repo and not work ... maybe I miss a step on this video tutorial. thank you.

[@andresrv88]

Hi! I'm leaving this here because I could not find anything on the Snowpack website or on Stackoverflow. I installed the `html2json` module and the @types that come with it. I even created a code to use it, but it is failing with the following error: Unhandled Runtime Error Uncaught TypeError: Cannot set properties of undefined (setting 'HTMLParser') I don't seem to find the reason why is not working. If I remove the import, or even more, it works if I remove the reference inside the code to that module. If anyone know why is this happening, I would appreciate the help! Thanks!!

[@swaroopbabaleshwar6072]

at 10:24 video where does snopack keeps compiled ts code ? how does this snopack tells browser to use the uuid from node_modues ?

[@codewithengineer]

There are some website where one can auto fill a form using resume upload. How do we make such thing?

[@Steve-Richter]

where is the /dist folder and the index.js file that was created by snowpack?

[@halestormtv]

there is no actual dist folder. After adding the script line to HTML, I resolved by Ctrl+C to cancel in terminal, then re-run with npm start. Then my html had the HI msg in the console output.