Mastering Controlled Inputs in React

controlled inputs

Creating controlled inputs in React is crucial for managing form data. A controlled input accepts its current value as a prop and callback to change that value.

Here is a simple example of a controlled input component in React:

class ControlledInput extends React.Component { constructor(props) { super(props); this.state = {value: ''}; this.handleChange = this.handleChange.bind(this); } handleChange(event) { this.setState({value:}); } render() { return ( <input type="text" value={this.state.value} onChange={this.handleChange} /> ); } }

In this component, the value of the input is always driven by the React state. When you type in the input field, it triggers handleChange which updates the state, causing a re-render with the new value.

This setup gives you more control over your input elements and allows for more complex behaviors. It's a fundamental concept that will enhance your React development skills.

Remember, the key is to keep your inputs controlled by maintaining the component's state as the single source of truth.

Keep experimenting and happy coding! You can find me at @samuellawrentz on X.

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