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ReactJS Blueprint Portal Component

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  • Last Updated : 08 Apr, 2022
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BlueprintJS is a React-based UI toolkit for the web. This library is very optimized and popular for building interfaces that are complex data-dense for desktop applications. Portal Component renders its children into a new subtree outside the current component hierarchy. We can use the following approach in ReactJS to use the ReactJS Blueprint Portal Component.

PortalContext Props:

  • blueprintPortalClassName: It is used to denote the additional CSS classes to add to all Portal elements in this React context.

Portal Props:

  • className: It is used to denote a space-delimited list of class names to pass along to a child element.
  • container: It is used to denote the HTML element that children will be mounted to.
  • onChildrenMount: It is a callback function that is triggered when the children of this Portal have been added to the DOM.

 

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 @blueprintjs/core

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.

App.js




import React from 'react'
import '@blueprintjs/core/lib/css/blueprint.css';
import { Portal } from "@blueprintjs/core";
  
function App() {
  
    return (
        <div style={{
            display: 'block', width: 400, padding: 30
        }}>
            <h4>ReactJS Blueprint Portal Component</h4>
            <Portal>
                <p>This content is shown above HEADING because
                    PORTAL renders its children into a new "subtree"
                    outside of the current component hierarchy.
                </p>
  
            </Portal>
        </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://blueprintjs.com/docs/#core/components/portal

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