react top loading bar

When creating a loading bar or progress bar with React, the basic steps are as follows: 1. Create the container to hold the progress bar.

    <div class="progress-bar-container"></div>
  

2. Create a child component that will display the progress bar.

    const ProgressBar = () => {
      return (
        <div>
          <div class="progress-bar"></div>
        </div>
      );
    }
  

3. Set a state value to control the width of the progress bar.

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

4. Increment the width value in the state with a timer. The timer can be set to a specific interval, or it can be based on an external event.

    componentDidMount() {
      this.timerID = setInterval(
        () => this.incrementWidth(),
        500
      );
    }

    incrementWidth() {
      this.setState({
        width: this.state.width + 5
      });
    }
  

5. Pass the width value of the state to the ProgressBar component.

    render() {
      return (
        <div class="progress-bar-container">
          <ProgressBar width={this.state.width} />
        </div>
      );
    }
  

6. Finally, use the width value to control the width of the progress bar.

    const ProgressBar = (props) => {
      return (
        <div>
          <div class="progress-bar" style={{ width: `${props.width}%` }}></div>
        </div>
      );
    }
  

With the steps above, a basic React progress bar is created. There are various other ways to create a progress bar with React, such as using libraries or creating more complex components. However, the steps discussed above will create a simple and efficient progress bar.