Learn how to leverage Formik to create complex and straightforward forms with ease.

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This course focuses on Formik, a JavaScript library for building forms in React. The ability to handle form data is crucial in modern web development, and Formik simplifies the process by allowing you to create forms with less code. You'll learn how to leverage Formik to create complex and straightforward forms with ease.

You'll start with the basics of Formik and gradually work your way up to more advanced topics. You'll learn how to create form fields, handle validation, manage form states, and submit forms. You'll also learn how to use Formik with other popular libraries like Yup for more advanced validation scenarios. 

By the end of this course, you'll be able to create robust and scalable forms in React using Formik. You'll have a deep understanding of how to manage form states, handle form submissions, and validate user input. Data collection is a key element in information technology and will enable you to build better, more organized forms with less code.

Writing React Forms Like a Pro with Formik

Often, we don't want our users to click the "Submit" button until they complete an action or until a condition is fulfilled. One way to make sure this happens is to display a message to the user that tells them not to click the button until they complete the action. This isn't very dependable because it takes control away from the form. 

We have to disable the button ourselves so that when the user clicks it, nothing happens. To disable a button in JavaScript XML (JSX), we do this:

```html
<button disabled={true}>...</button>
```

But what we want is a way for us to tell our "Submit" button when it should be disabled and when it should not.

We'll look at two instances in which we may want to disable our "Submit" button:
- When at least one field in the form is invalid.
- When the form is processing submission logic that will take a while.

Learn how to dynamically disable the "Submit" button.

Getting Started

Managing the Form State

Validating Forms

Submitting Forms

Assessment: Formik Essentials — From Managing State to Submission

Reducing Boilerplate

Creating Reusable Form Components

Additional Concepts

Final Assessment

Project: Build a Multi-Step Checkout Form with React and Formik

Disabling the Submit Button