React Js Detect Internet Speed

React Js Detect Internet Speed:React.js can detect internet speed by using the "navigator.connection" API, which provides information about the user's network connection. By accessing the "effectiveType" property, React.js can determine if the user is on a slow 2G, 3G, 4G, or fast 5G connection. This information enables developers to optimize their React.js applications by delivering appropriate content or adjusting functionality based on the detected speed, ensuring a smoother user experience. React.js can react dynamically to varying internet speeds, enhancing performance and user satisfaction

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How to measure internet speed in a Reactjs app?

This ReactJS code detects and displays the user's internet speed using the Web Network Information API. It initializes states for loading, connection type, and bandwidth. When the component mounts, it fetches the connection data asynchronously. If the navigator.connection object is available, it retrieves the effective type and downlink bandwidth. The UI displays loading while fetching data and then dynamically determines if the connection is fast (4G/5G with bandwidth >= 10 Mbps), slow (2G/3G with bandwidth < 1 Mbps), or standard, and provides this information to the user. It's a simple way to inform users about their internet connection speed

React Js Detect Internet Speed Example

  <script type="text/babel">
    const { useState, useEffect } = React;
    function App() {
      const [isLoading, setIsLoading] = useState(true);
      const [connectionType, setConnectionType] = useState('');
      const [bandwidth, setBandwidth] = useState('');

      useEffect(() => {
        const fetchData = async () => {
          try {
            if (navigator.connection) {
              await navigator.connection.ready;
              setConnectionType(navigator.connection.effectiveType);
              setBandwidth(navigator.connection.downlink.toFixed(2));
              setIsLoading(false);
            } else {
              setConnectionType('Unknown');
              setBandwidth('N/A');
              setIsLoading(false);
            }
          } catch (error) {
            console.error('Error fetching data:', error);
          }
        };

        fetchData();
      }, []);

      return (
        <div className='container'>
          <h3 className='title'>React Check Internet Speed</h3>
          {isLoading ? (
            <p className='loading'>Loading...</p>
          ) : (
            <p className={`connection-info ${connectionType === '4g' || connectionType === '5g' || bandwidth >= 10 ? 'fast' : 'slow'}`}>
              {connectionType === '4g' || connectionType === '5g' || bandwidth >= 10 ? (
                `You are on a fast ${connectionType} connection (${bandwidth} Mbps).`
              ) : connectionType === '2g' || connectionType === '3g' || bandwidth < 1 ? (
                `You are on a slow ${connectionType} connection (${bandwidth} Mbps).`
              ) : (
                `Your internet connection is ${connectionType} (${bandwidth} Mbps).`
              )}
            </p>
          )}
        </div>

      );
    }

    ReactDOM.render(<App />, document.getElementById("app"));
  </script>

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How to measure internet speed in a Reactjs app?

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