#12 React JS Tutorial 2024

Forms & Controlled Components in React Js

This tutorial will cover the basics of handling forms and controlled components in React Js. Forms are a crucial part of web development as they allow users to input data and interact with the application. In React, we can create forms using the tag and handle user inputs using controlled components.

Creating a Form

To create a form in React, we use the tag and add input fields for users to enter data. For example:

        {`
            Email:
            
            Password:
            
            Submit
        `}
    

Controlled Components

In React, controlled components are input elements whose value is controlled by React state. This allows us to keep track of user input and update the UI accordingly. To create a controlled component, we need to set the value of the input field to the state and handle changes using the onChange event. For example:

        {` this.setState({username: e.target.value})}
        />`}
    

Conclusion

In this tutorial, we have learned how to create forms and use controlled components in React Js. By using controlled components, we can easily manage user input and update the UI accordingly. This is a fundamental concept in React development and will be used in many applications. Stay tuned for more tutorials on React Js!