ReactJS Reactstrap Collapse Component

24 Nov, 2021
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 Collapse component is used as a content area that can be collapsed and expanded. We can use the following approach in ReactJS to use the ReactJS Reactstrap Collapse Component.
Collapse Props:
inOpen: It is used to show the component.
children: It is used to pass the children element to this component.
tag: It is used to denote the tag for our collapse component.
className: It is used to denote the class name for styling.
navbar: It is used to indicate whether it is associate with the navbar component or not.
cssModule: It is used to denote the CSS module for styling.
innerRef: It is used to denote the inner reference element.
mountOnEnter: It is used to mount the component as it waits until the first enter transition is triggered.
unmountOnExit: It is used to unmount the component.
appear: When the component mounts, it is used to run the collapse-in animation.  
enter: It is used to enable or disable enter transitions
exit: It is used to enable or disable exit transitions
timeout: It is used to denote the duration of collapse animation in milliseconds. 
addEndListener: It is used to denote a function that listens to an end event.
onEnter: It is a callback function that is triggered before the component collapse in.
onEntered: It is a callback function that is triggered after the has component collapsed in.
onEntering: It is a callback function that is triggered after the component starts to collapse in.
onExit: It is a callback function that is triggered before the component collapse out.
onExited: It is a callback function that is triggered after the component has collapsed out.
onExiting: It is a callback function that is triggered after the component starts to collapse out.
baseClass: It is used to denote the class that is always applied to the collapse element.
baseClassActive: It is used to denote the class applied to the collapse element when it is in an active state.
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. foldername, 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, App is our default component where we have written our code.
Javascript
import React from 'react'import 'bootstrap/dist/css/bootstrap.min.css';import { Collapse, Button } from "reactstrap"  function App() {      // Collapse Open state    const [isOpen, setIsOpen] = React.useState(false);      return (        <div style={{            display: 'block', width: 900, padding: 30        }}>            <h4>ReactJS Reactstrap Collapse Component</h4>            <Button color="primary" onClick={() => {                setIsOpen(!isOpen)            }}>Toggle Me to see Collapse Component!</Button>            <Collapse isOpen={isOpen}>                <p>I am sample Text to display</p>            </Collapse>        </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/collapse/
sumitgumber28
Reactstrap
JavaScript
ReactJS
Web Technologies
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