Build an Expense Tracker | React Hooks & Context API 

Here is part 2 where we take it a step further and build a backend API with Node/Express/MongoDB - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KyWaXA_NvT0.html

Three years ago I tried to find simple and understandable video about the whole new and scary world of JS. And found this small channel with 15k subscribers where cool big guy explained basic stuff about JS. And after three years I still watch almost every video from Brad. And now you, Brad reached 1M subscribers. And I became Team Lead in small company in Ukraine. And all started from your channel and your talent to explain hard things as simple as possible. Thank you. All good wishes to you, your son and your family.

I'm here to tell you that thanks to your tutorials, your teaching style and your amazing knowledge I was able to find a job as a ReactJS developer with an amazing team who were surprised with all the knowledge that I learned from you! You helped me after struggling for almost a year without a job and it really brings a tear to my eye writing this while I'm doing my job and thinking about all the times I was watching your videos and dreaming of having a steady job one day. Thank you so much for everything you have done for me and everyone else, you are changing our lives... And with my 1st paycheck I also got your udemy courses on JS and React but it will never be enough for what I have learned from you! Thank you Brad

Today I went to an engineering college for a lecture and I recommend your channel learning different technologies

Hi Brad Sir, I initially started learning programming from your channel on 2017. Last Month I joined Microsoft, which is one of my dream company. I don't know whether you read this comment or not. I wanted to show my deep gratitude to you by becoming a patreon. Thank you once again. With love from India.

One of the best parts about this channel is being capable of explaining anything so that even a layman can understand in details.

Thought you would be on a week long binger after hitting 1million lol. I guess its just back to the lab for Brad :)

I finished making this same app using vanilla JS a couple days ago from your 20 Javascript Apps course on Udemy. Making this again with React, Hooks and Context API is the cherry on top! Thank you so much for this and I appreciate all of your professionally made content!

If you need to reset the "add transaction" form, just add these two lines: setText(''); setAmount(''); at the end of the AddTransaction() function in AddTransaction.js file. Great tutorial, thaks a lot!! :)

Hey Brad, congrats on 1M subs! Very well deserved! Learned a lot from your vids. Thanks for all the great content!!

Hi Brad. Wanted to thank you a lot for all your videos. It's been a while now that I discovered your channel (and your udemy classes), and it helped me a lot to transition from my old field of study (Neurosciences...) to being now a full time engineer & front-end dev in a nice company. Everytime I have doubts, or something I don't understand, I end up coming back to your channel, and there is a reason behind it...you just have one of the best dev channels on youtube and your way of explaining things is great. So thanks again and all the best to you (and other fellow devs reading this)

Was planning on building one of these, and boom! Traversy uploaded a video about it. Great vid!!

Actually It Helped me a lot to Understanding the React, reducer Concept. Thanks a lot Mr. Brad Sir, you're the Best in your way

From a noob to a technical leader of a startup, I really enjoy watching your videos and have been still learning loads of new stuff. Thank u Brad! Would really like to see more complex projects on advanced React Hooks like useEffect and custom hooks!

When you ran npm start an ad started on youtube. Blew my mind.

whoever convinced you to remake this application in react did the right thing

Thank you so much. This is the first React project I coded along from beginning to the end. I am sure I'll understand how everything speak with each other as I continue. This gives me hope.

You're the best explainer of these concepts. I like how you actually talk through the code and explain what and why you are doing something rather than just say "next we do this, then we do that" like other instructors.

I seriously don't understand why would anyone click the dislike button? how bored are people? thanks for the vid Brad!

I've been watching this channel for year now, and I can tell, that you are one of the few people on RU-vid who actually helped me to learn something and achieve some of my goals! Thanks for the awesome content! Congratulations on your well deserved success!

Terrific tutorial. Bought your reactjs: front to back course a few weeks ago. Very well done and complete. Thanks for everything.

I really love this vid. Even though I didn't watch the crash course before watching it. Cz it made me want to learn react.

Thanks for all these videos brad. I had always a negative ATT towards js but this channel changed my whole perspective and kept me loving it. Many thanks from Kenya.

One should just buy all your courses and run through em! Great job

You're just spechless sir, We're blessed that we've got instructor like you, so that we can buy courses in just in price of food in udemy, god will bless you, keep making courses sir .

The best money iv'e ever spent was buying your courses. Thank you brad for making it easier for us ! you're a true hero!

Easily the best teacher on RU-vid, heres to hitting 2 million, well done sir

I'm posting this comment here so that each time someone likes it, It will boost my moral to continue learning React

Hugs from Hamburg, Germany man. ;). I’m starting on a new job and needed react. You teached me to survive I hope :) thanks so much. 😘

You're absolutely amazing! The community is blessed to have you around to guide us all. Much love from India!

Brad thank you, ever since I started pursuing Web development you have been a great mentor and a role model for me. Your content is appreciated. I am from South Africa !

i think you're become a hero because you try shere your information for us

I followed this and converted it to use Redux instead of Context, great video, really easy to follow. Thanks!

great video man , in arabic we say "chokran lak" as thank you 😎

I was just going to do this, take the expense tracker and make it into a react app for practice. I guess Brad read my mind.

Just that I needed! Thanks Brad, I always recommend your material to everyone that want to start to learn development or some senior mates that are curious about JS/Frontend stack

This one video will give complete understanding of hooks with global state. Thank u brad again

Congratulations on the 1 MILLION subscribers...VERY DESERVED for all that you teach us. And I greatly appreciate you building something with the context-api..I needed more practice.

you do have a gift for bringing these new web technologies down to a practical level! very grateful for all these videos you make 🙏 🙏 🙏

Great work again Brad. I am going to follow on from this tutorial and update the projects I have worked on from the Vanilla JS course by creating them in React. I've done this before and I always find it refreshing to not have to invoke so many createElement() calls!

420 balance, well played brad

Brad solved "+amount" problem as a legend!

Thank you so much Brad for this amazing and well-thought tutorial. It helps a lot to have the designs taken care of so that I can focus on code.

Such an awesome tutorial . Just today I was asked many questions from context API , would be a blessing if the vedio was released yesterday.

Thank you so much Brad for Teaching Hooks in react! I very grateful to use this as a reference!

Hello Brad, 1 million subscribers - congratulations . I wish you all the best in the future. You're doing a great job. Thanks.

Although I didn't understand everything, I still followed through the entire course. Now onto part 2! :D

Thank you so much for sharing with us Brad!! Looking forward your react applications course in the future.. And really really wish that you consider converting your React course and MERN course that you already have on Udemy into MERN with Mysql/sequelize, while still using JWT for login,passport for social media, jwt routes admin/users, bcrypt, etc... The vast majority of Nodejs/react courses online have been made with MongoDB, therefore the market is really thirsty for MERN sql Technology! (Mysql/sequelize) Thank you so much for all your efforts and your help!

dont have enough words to appreciate your efforts for students like me

been a developer for a little bit and Brad has saved me at work mutliple times haha

The most important parts: 15:42 --> Setup the folders and files to create the GlobalContext 16:44 --> Set initial state 18:00 --> Create the Global Context 18:44 --> Create the provider component 21:00 --> Create the reducer 22:53 --> Wrap the App with the global provider 24:03 --> Access the Global State 35:55 --> Set State through context

I had this idea too. I completed the exchange rate calc in vanilla yesterday and the react version of it today.

This tutorial is really crazy, i understood perfectly. many thanks.

Thanks. I learned a lot about useReducer, useContext and createContext.

Honestly I watched tons of tutorials of React Hooks but this one literally gets me through to it :D

Nice!! I just completed this in your 20js projects. Gonna knock this out today. Congrats on the subs and continued incredible work.

Amazing tutorial. Context API explanation and implementation were very understandable. Thank you, and congratulations on 1M subs.

Great!! hope to see more projects using React for the frontend and Ruby on Rails APIs backend, also using bulk upload from CSV to load data to the database. Really appreciated!!

Brad. Thank you so much.. I can't thank you enough for all you've done for the community and most especially the next generation of developers. Can't wait to have the next video.

Awesome, I wanted to see context and reducer at work and you drop a video doing just that. Cheers Brad

Woooh! This was my first project in React! And yeah, as usual, Brad rocked! Will try to implement some project on my own😊😊

Thank you brad for your content i started following you last year and also looked into your udemy courses and i have not been the same THANK YOU very much....

Haha, I was thinking about this project the other day. I've only done the modal one so far. I wrote my own expense tracker in python a long time ago, and it basically eliminated all my overdrafts overnight, so this is a really awesome project, for sure. I think this one is more interesting, because if you had it on a server you could track a whole household and you would be free to use different devices.

instead of having to pass every function like (deleteTransaction) to the value property of the provider. we could pass dispatch instead. and use that dispatch on our components and leave our GlobalState neat and clean. (e.g): dispatch({type: "DELETE_TRANSACTION", id: props.transaction.id})} className={props.transaction.amount < 0? 'minus' : 'plus'}> {props.transaction.text} {sign}${Math.abs(props.transaction.amount)}x thank You brad an amazing tutorial like always.

for expense tracking use Moon Invoice application this app have so many features

Congrats man!! Its 1M.. really happy, proud amd thankful... enjoying your Udemy courses as well...keep up the good work

WOOOOW, thats amazing! I've learned a lot! Thank you so much!!!!

Congratulations for 1M+ subscribers Sir.. You deserved 100M+ Thanks for this React tutorial :)

Always appreciate the content. You're a major reason I know anything at all in this silliness. Congrats on the 1 mill!

Hi sir, I'm going through the this tutorial, but I'm having an issue, when I add an item and amount and press add transaction. That item is not updating into the list... Can anyone tell me why is this and how to fix

Dude that was challenging my head still hurts but one day I’ll come back to this video and say it was easy

Thanks Brad, This really helped in understanding Hooks and Context API. Can you please guide - how to populate initialState with api call. Thanks again

For expense tracking I am using Moon Invoice application this software is best for using.

wow !! i wish next react multilanguage

Got the update that Traversy dropped a new video. Time to start a new project !

This is such a beautiful and interesting project.I have enjoyed the full tutorial.Thanks a lot Brad Traversy for your effort to building such an amazing react project

best teacher ever even better than ones on my university

I learned so much from this video.

ALL HAIL @Traversy Media OVERLORDS!!!!

Well done on 1M! You have been very helpful.

Brad I really like the way you teach the projects, could you do more react projects yourself. its good to have guests to your channel but we are here for you Brad.

This video came out at the perfect time!! I wanted to learn hooks and context and then you released this video. Fantastic video as always, keep up the great work!!

FIRST OF ALLL CONGOOO FOR THE 1M Subs Brad. Just irrelevant, but the shade of blue which you used on the thumbnail was typescript react (JSX would be slight lighter). I was literally thinking that you were combining typescript template with all these other tech haha.

Hearty congratulations for your 1M subs. My best wishes to get more and thanks for all your knowledge sharing.

Awesome Project! Hopefully I will make it's backend after I learn the backend stuff.

How can we keep the transactions from deleting in history after refreshing the page without having the backend. After adding a few transactions i want to hold all the previous ones from clearing on refreshing the page.

Thank you for this video!!! you have made it so simple for me to work with reducer and context.

Battle of Thermopylae! History says it all :)

Thank you sir .... You really make it understandable... Grateful

Great tutorial as always. I have just realized the power of React.🤓

Congrats on reaching 1M Brad, you're an inspiration! many thanks for creating such awesome videos! and this one came at such a perfect time, I was just looking for React projects to make!

I found if you put the example into the function App() before you type it at the top where the imports go it will automatically put the import up at the top of the file :) had no idea until I did twice and was trying to figure out how that got there lol.

Great time to get learning Hooks off my bucket list.

Congrats Brad on 1M Subs! Love your channel here in Kenya. Thank you for the great content. God bless!

congratulate Brad u cross one million subscriber and i am big fan of u since 2018.

Thank you & stay safe with ur family, situation in USA looks horrible

Nice one Brad, what can we do without him. So its 1m sub👌🏽👌🏽👌🏽.

Oh my GOD congratulations for the 1M subs. I'm very happy to get frequently notification from your channel. Keep up working hard to achieve your various goal

Great tutorial! You should now do another video that cleans it up with immer

I really like Brad videos and I learn a lot. But what else is there in his Udemy courses which is not covered here? Can someone please explain.?