Handling Events in React Components
Learn how to style React components using CSS stylesheets, inline styles, and best practices.
Interactivity is a core aspect of modern web applications, and React provides a straightforward way to handle user interactions and events. React handles events similarly to how events are handled in regular HTML and JavaScript, but with some syntactical differences. Let's see how we can handle events in React.
Why event handling matters
Interactivity: Events allow users to interact with our application.
Dynamic behavior: Event handling enables components to respond to user input, such as clicks, typing, and form submissions.
User experience: Proper event handling enhances the user experience by making applications more intuitive and responsive.
Understanding event handling in React
In React, events are named using camelCase, rather than lowercase. For example, the HTML onclick event is written as onClick in React.
<!-- HTML example --><button onclick="handleClick()">Click Me</button><!-- React equivalent --><button onClick={handleClick}>Click Me</button>
Key differences
Event naming: Use camelCase (e.g.,
onClick,onChange) in React.Event handling: Pass a function reference as the event handler, not a string.
Creating event handler functions
Event handler functions define what happens when an event occurs. In React, these are typically defined within the component. Let’s create a simple button ...