React FieldArray Form Tutorial: Using Formik, Yup and material-ui

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In this tutorial, we'll build a donations platform using the Formik FieldArray form with React and Yup for validation.

In order to validate our forms, we will use Yup with Formik validationSchema.
We show how to validate fields inside a FieldArray. We will also do a validation where we have to sum all the fields of an array.

In order to add a nice look and feel to our form, we will use Material-UI

We will use Formik with typescript.

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Timeline:
00:00 Introduction to FieldArray + Show the final application we will get at the end of the video
02:17 Creating the form with all the fields, except FieldArray fields
11:53 Style the form using Material-UI
13:23 Add validation using Yup validationSchema - No validation for FieldArray fields yet
20:09 Explaining how the FieldArray works
23:15 Add FieldArray Formik component into our form
32:07 Style the field array using Material-UI
35:55 Add basic validation to FieldArray using Yup validationSchema
40:16 Add complex validation for the 100% percentage sum ValidationError using Yup validationSchema
46:50 Add ValidationError for custom error messages
49:50 Make all buttons disabled during submit
53:05 Conclusion

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Nice video Bruno 👍👍
The combination between Formik + Yup is amazing.
It makes validation feels like a breeze, while MaterialUI showing the errors in the UI.

tririfandani
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Bruno, i don't have words to thank you enough! You helped me so much with this video alongside with the mult step form. Greeting from Brazil, muito obrigado!

vitorpereira
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Hey bruno. Glad you are back online.
This video is a must watch!.
will do it soon hopefully!

sergiob
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From your introduction, you just saved my day. Thanks Bruno

victorchidi
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So glad I stumbled across this tutorial. Exactly what I needed, and as mentioned already, nice to see you using Typescript

andreroodt
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Bruno you deserve a part of my salary, you helped me so much with this

Pouetpouets
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Thx, bro !
I don’t know english good, but watching your videos and understanding all themes.

BBCLinar
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thank you very much Bruno. a very clear and fun tutorial. helped me a lot ❤

sanjeewanayanananda
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Love that you're doing these in Typescript, it makes it so much easier to use in actual projects! 💙

Any chance of you making a tutorial on how to add custom validation methods/types to yup? For example date validation and credit card validation? Particularly how to make them "visible" to Typescript, so you can do value: 🙏

Svish_
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Hello sir you dropped this 👑. I'm jumping between your formik videos and I must say you are amazing my friend.

eliastamerr
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Another nice video of react and formik.

rohantongle
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Wow!!! One of the greatest tutorial....

brightertomorrow
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Terima kasih sangat membantu, im from indonesia your amazing bro

saidmuhammadkhatami
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you make a huge contribution to my programming learning. thank you

rafaborowski
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I generally dont comment much. Thanks Bruno. Much needed knowledge for me; Keep gng. u got a new sub

saisagarsharma
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I feel like i have no clue about react when i see your Videos :'D
You're great and very experienced!

emanuelavram
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really you are cheerful and beneficial guy, (LOVE YOUR VIDEO) , many thanks

ibrahim_youssef_.
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Bruno, i find your videos very helpful and very well explained💙 thanks u a lot

xPanda
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Amazing tutorial! Thank you very much!

cradleofkaschenko
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Thanks Bruno for the video, love it !!

rachmanjk