Referenceerror: readablestream is not defined

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Error: ReferenceError: ReadableStream is not defined

This error message occurs when the code is trying to use the ReadableStream object, but the browser does not support it. ReadableStream is a newer JavaScript API that allows for efficient consumption of a chunked data stream. However, it is not supported by all browsers yet.

To overcome this error, you can use a polyfill or a workaround to ensure ReadableStream is available even in older browsers. A polyfill is a piece of code that provides a consistent API across different browsers by emulating the features that are not supported natively.

Here is an example of how to use a polyfill for ReadableStream using the web-streams-polyfill package from npm, along with the fetch function to read a remote text file: 


    // Install the 'web-streams-polyfill' package from npm:
    // npm install web-streams-polyfill
    
    import 'web-streams-polyfill';
    
    // Fetch a remote text file
    fetch('https://example.com/myfile.txt')
      .then(response => response.body)
      .then(body => {
        const reader = body.getReader();
    
        function read() {
          return reader.read()
            .then(({ done, value }) => {
              if (done) {
                console.log('Finished reading!');
                return;
              }
              // Process the received data chunk
              console.log(value);
              // Continue reading
              return read();
            });
        }
    
        // Start reading the stream
        read();
      })
      .catch(error => console.error(error));

Make sure to import the web-streams-polyfill package first before using the ReadableStream object or any related functions. This will ensure that the necessary polyfill is included in your code and the ReadableStream API is available.

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