Gain insights into creating robust React forms with Formik. Delve into managing form states, validation with Yup, and handling submissions to build scalable, efficient forms.

Write React Forms Like A Pro With Formik.png

react.tar.gz

React-with-watcher

React-without-watcher

react-app-template

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

code {
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
    monospace;
}


import React from 'react';
import ReactDOM from 'react-dom';
import App from './app.js';
import './style.css';

ReactDOM.render(
  <App />, 
  document.getElementById('root')
);


import ReservoForm from "./components/ReservoForm";

const App = () => {
  return (
    <div>
      <ReservoForm />
    </div>
  );
}

export default App;


* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Roboto", sans-serif;
}

section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 4rem;
}

.form-data {
  background: #f0f3ff;
  border: 1px solid #b3c1ff;
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 2rem;
}

.form-data p {
  text-align: left;
  width: 100%;
  margin: 0.5rem 0;
}

.form-data p span {
  font-weight: 700;
  text-decoration: underline;
}

h1 {
  font-size: 2rem;
  color: #325;
}

form {
  width: 100%;
  max-width: 480px;
  border: 1px solid #eee;
  padding: 1.6rem;
  border-radius: 6px;
  margin-top: 2rem;
}

label {
  display: block;
  width: 100%;
  font-size: 0.875rem;
  margin-bottom: 2rem;
  color: #444;
  font-weight: 500;
}

input {
  display: block;
  font-size: 1rem;
  line-height: 15px;
  background: white;
  margin-top: 8px;
  font-weight: 400;
  color: #222;
  padding: 16px;
  padding-right: 16px;
  box-shadow: 0px 1px 2px rgba(50, 50, 71, 0.08),
    0px 0px 1px rgba(50, 50, 71, 0.2);
  border-radius: 6px;
  outline: none;
  border: none;
  transition: 1s ease;
  width: 100%;
}

input:focus {
  box-shadow: 0px 0px 0px 2px rgba(76, 111, 255, 0.3);
  border: 1px solid #7895ff;
}

button {
  width: 100%;
  background: #4c6fff;
  display: flex;
  justify-content: center;
  border-radius: 8px;
  padding: 16px 0;
  outline: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s linear;
  font-weight: 600;
  font-size: 14px !important;
  line-height: 14px !important;
  color: #ffffff !important;
}

button:hover {
  background: #3453d1;
}


small {
  display: none;
}

input:invalid[touched="true"] ~ small {
  display: block;
  color: #cc4348;
  font-size: 14px;
  margin-top: 4px;
}



import React from 'react';
import { shallow, configure } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

configure({ adapter: new Adapter() });

import HelloWorld from './app';

var TestResult = function() {
    this.succeeded = false;
    this.reason = "";
    this.input = "";
    this.expected_output = "";
    this.actual_output = "";
}

export const executeTests = function() {

  var results = [];

  result = new TestResult();
  result.input = 'HelloWorld Component';
  result.expected_output = "span containing text 'Hello World'"

  let wrapper = shallow(<HelloWorld />);

  // Call your Challenge function here.

  let type = wrapper.type();
  let testSuccessful = true;
  let failureReason;

  if (type !== 'span') {
    testSuccessful = false;
    failureReason = "You need to render exactly one span HTML element";
  } else if (wrapper.props().children != "Hello World") {
     testSuccessful = false;
     failureReason = "You have rendered wrong message in your span element";
  }

  result.actual_output = wrapper.html();

  if (testSuccessful) {
    result.succeeded = true;
    result.reason = "Succeeded"
  } else {
    result.succeeded = false;
    result.reason = failureReason;
  }

  results.push(result);

  return results;
}


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

Manage the Form State with useFormik

Explanation