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

An object with `initialValues` and `onSubmit` properties.



An object with `initialValues`, `onChange`, and `onSubmit` properties.


An object with `values`, `handleChange`, and `handleSubmit` properties.

An array with `values`, `setValues`, and `submitForm` elements.


What argument should be passed to the `useFormik` hook to initialize form values, handle changes to form values, and handle form submissions?



<p>What argument should be passed to the <code>useFormik</code> hook to initialize form values, handle changes to form values, and handle form submissions?</p>


```
const [formik] = useFormik({
  //...
})
```

```
const [formik, setFormik] = useFormik({
  //...
})
```

```
const formik = useFormik({
  //...
})
```

```
const {formik} = useFormik({
  //...
})
```

Which of the following is the correct syntax for calling the `useFormik` hook?

<p>Which of the following is the correct syntax for calling the <code>useFormik</code> hook?</p>


```
const formik = useFormik({
//...
})
```

Which of the following methods automatically updates `formik.values` when a field changes in the snippet above?

<pre><code>const formik = useFormik({
//...
})
</code></pre>
<p>Which of the following methods automatically updates <code>formik.values</code> when a field changes in the snippet above?</p>


```
<input
  type="text"
  name="country"
  onChange={formik.handleChange}
  value={formik.country}
/>
```

```
<input
  type="text"
  name="country"
  onChange={formik.handleChange}
  value={formik.country.value}
/>
```

```
<input
  type="text"
  onChange={formik.handleChange}
  value={formik.values.country}
/>
```

```
<input
  type="text"
  name="country"
  onChange={formik.handleChange}
  value={formik.values.country}
/>
```

```
const formik = useFormik({
  initialValues: {
    age: "",
    country: "",
  },
});
```

Which of the following is a valid way to create a text field for the `country` property in the snippet above?


<pre><code>const formik = useFormik({
  initialValues: {
    age: &quot;&quot;,
    country: &quot;&quot;,
  },
});
</code></pre>
<p>Which of the following is a valid way to create a text field for the <code>country</code> property in the snippet above?</p>


By using the `formik` property of the `useFormik` hook.


Via the `values` property of the object returned by the hook.

By using the `getValues` method of the `useFormik` hook.

By using the `formData` property of the `useFormik` hook

How can we access the values of form fields in a form powered by`useFormik`?


<p>How can we access the values of form fields in a form powered by<code>useFormik</code>?</p>


Test yourself on how to manage a React form state with this quiz.

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

Quiz: Test on Managing the Form State