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How To Build a Progress Bar with ReactJS

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by vsasikalabe dot icon Updated: Feb 1, 2023

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Progress bars are often used in graphical user interfaces (GUIs) to provide feedback to the user about the status of a long-running operation. In a web application, they may also be used to display the status of a job or process. Usually, it appears as a horizontal bar filled in from left to right, with the bar's width representing the amount of progress.  


To create a progress bar using React, you can use the useState hook to control the progress bar's state and the useEffect hook to update it periodically.  

  • useState can be defined as a hook that will allow you to have local/state variables to functional components (i.e., The more common components. The current state and a function that may be used to change the state are the two components of an array that the useState hook returns after receiving an initial state as an argument.  
  • useEffect in React allows you to perform side effects in functional components. useEffect takes a function as an argument and runs this function after the component renders. The function is called an "effect," and it can contain any code that you want to run after the component renders.  


For more information about React Progress Bar, refer to the code given below.  

Preview of the output that you will get on running this code from your IDE

Code

In this solution we use the React library.

React progress bar with each click

JavaScriptdotLines of Code : 51dotLicense : Strong Copyleft (CC BY-SA 4.0)

class ProgressBar extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      width: 0,
      score: 0
    };    
  }

  render() {
    const style = {
      width: this.state.width + '%'
    };
  
    return (
      <div className="wrapper" onClick={(e) => { this.handleClick(e); }}>
        {'Score: ' + this.state.score} <br />
        {this.state.width + '%'}
        <div className="bar" style={style} />
      </div>
    );
  }
  
  handleClick(e) {
    this.setState(state => {
      if (state.width + 10 === 100) {
        return { width: 0, score: state.score + 1 };
      }
      return { width: state.width + 10 };
    });
  }
}

ReactDOM.render(<ProgressBar />, document.getElementById('root'));
.wrapper {
  width: 100%;
  height: 300px;
  background: #eee;
  cursor: pointer;
}

.bar {
  width: 0;
  height: 20px;
  transition: width 0.3s;
  background: #ec6161;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.0/umd/react-dom.production.min.js"></script>

<div id="root" />

Instructions

Follow the steps carefully to get the output easily.

  1. Install the Node.js and React on your IDE(preferable Visual Studio Code).
  2. Create React Application using npx create-react-app foldername.
  3. cd foldername.
  4. Open the folder in IDE.
  5. Copy the code using "copy" button above and paste it in App.js file and also paste style code in App.css,html code into index.html file within the body tag.(remove the earlier code from App.js and App.css.).
  6. Import React component and React DOM,
  7. Add export default progressBar to the end.
  8. Open the terminal from IDE.
  9. npm start to run the file.


I hope you found this useful. I have added the link to dependent libraries, version information in the following sections.


I found this code snippet by searching for 'Progress Bar using Reactjs' in kandi. You can try any such use case!

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

  1. The solution is created in VS Code 1.73.1 version.
  2. The solution is tested on Nodejs 16.14.2 version.
  3. react 18.2.0 version.


Using this solution, we are able to create Progress Bar using Reactjs with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to create Progress Bar using Reactjs.

Dependent Libraries

create-react-appby facebook

JavaScript doticonstar image 100082 doticonVersion:v5.0.1doticon
License: Permissive (MIT)

Set up a modern web app by running one command.

Support
    Quality
      Security
        License
          Reuse

            create-react-appby facebook

            JavaScript doticon star image 100082 doticonVersion:v5.0.1doticon License: Permissive (MIT)

            Set up a modern web app by running one command.
            Support
              Quality
                Security
                  License
                    Reuse

                      You can search for any dependent library on kandi like 'react'.

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