title: NodeJS CSVReader - createReadStream with csv-parse returns empty array
body: <p>I have the CSV reader class that takes two parameters (filePath, and model). The file path is the path to the .csv file, and the model is the model that the .csv will be built on. The data will be stored in the output array. It as has a problem as when I return the array, it is empty. But when I console log the array, it has the data in there. Can someone help me?</p>
  <p>Index.js</p>
  <pre><code>const parse = require('csv-parse')
  const fs = require('fs');
  const output = [];
  
  class CSVReader{
      static GetRecord(filePath, model){
          fs.createReadStream(filePath)
              .pipe(parse({columns: false, delimiter: ',', trim: true, skip_empty_lines: true}))
              .on('readable', function (){
                  let record
                  while (record = this.read()){
                      let city = model.create(record)
                      output.push(record)
                  }
              })
              .on('end', function (){
                  //console.log(output);
              })
          return output;
      }
  }
  module.exports = CSVReader;
  </code></pre>
  <p>I used Jest to test the file but it has a problem as expected is 6, but I received []</p>
  <p>Index.test.js</p>
  <pre><code>const CSVReader = require('../src/Index');
  const City = require('../src/Models/City')
  test('Can Read CSV File', () =&gt; {
      let filePath  = 'data/worldcities.csv';
      let records = CSVReader.GetRecord(filePath, City);
      expect(records.length).toBe(6);
  });
  </code></pre>