ReactJS Reactstrap Alert Component

Reactstrap: Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4. The alert Component is used for urgent interruptions, requiring acknowledgment that informs the user about a situation. We can use the following approach in ReactJS to use the ReactJS Reactstrap Alert Component.

Creating React Application And Installing Module:

Step 1: Create a React application using the following command:

npx create-react-app foldername

Step 2: After creating your project folder i.e. folder name, move to it using the following command:

cd foldername

Step 3: After creating the ReactJS application, install the required module using the following command:

npm install reactstrap bootstrap

Project Structure: It will look like the following.

Project Structure

Example: Now write down the following code in the App.js file. Here, the App is our default component where we have written our code.

Javascript

import React from 'react'
import 'bootstrap/dist/css/bootstrap.min.css';
import { Alert } from "reactstrap"

function App() {
    return (
        <div style={{
            display: 'block', width: 700, padding: 30
        }}>
            <h4>ReactJS Reactstrap Alert Component</h4>
            <Alert color="success">
                Sample Success Alert Text
            </Alert>
            <Alert color="danger">
                Sample Danger Alert Text
            </Alert>
            <Alert color="warning">
                Sample Warning Alert Text
            </Alert>
            <Alert color="primary">
                Sample Primary Alert Text
            </Alert>
            <Alert color="secondary">
                Sample Secondary Alert Text
            </Alert>
        </div>
    );
}

export default App;

Step to Run Application: Run the application using the following command from the root directory of the project:

npm start

Output: 

Now open your browser and go to http://localhost:3000/, you will see the following output:

Reference: https://reactstrap.github.io/components/alerts/