convert reduce() method to map() method

Question

I would like to use the map() method for the _processData() function to extract the LATITUDE and LONGITUDE columns of my CSV file instead but not sure how. I am using the d3-fetch to parse in CSV file.

  class App extends Component {
    state = {
      points: [],
    }

    componentDidMount() {
      this._processData()
    }

    _processData() {
      csv(csvFile).then(x => {
        const points = x.reduce((accu, curr) => {
          accu.push({
            position: [Number(curr.LONGITUDE), Number(curr.LATITUDE)],
            pickup: true,
          })
          return accu
        }, [])
        this.setState({
          points,
        })
      })
    }
    
  }

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>