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In this example, we’re using the createReadStream method from the fs module to create a stream for the large CSV file. We then pipe that stream into the csv-parser library, which parses each row of the CSV file and emits a 'data' event with the row data. We can then process that data however we need to. Finally, we listen for the 'end' event to know when we’ve finished processing the entire CSV file.

By using streams to process the CSV file, we avoid loading the entire file into memory at once, which can be a big performance improvement when dealing with large files.

      

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