index.js

import {parse} from 'csv-parse';
import fs from 'fs';

const habitablePlanets = [];

function isHabitablePlanet(planet) {
    return planet['koi_disposition'] === 'CONFIRMED'
        && planet['koi_insol'] > 0.36 && planet['koi_insol'] < 1.11
        && planet['koi_prad'] < 1.6;
}

fs.createReadStream('Kepler_data.csv')
    .pipe(parse({
        comment: '#',
        columns: true,
    }))
    .on('data', (data) => {
        if (isHabitablePlanet(data)) {
            habitablePlanets.push(data);
        }
    })
    .on('error', (error) => {
        console.log(error);
    })
    .on('end', () => {
        console.log(habitablePlanets.map((planet) => planet['kepoi_name']));
        console.log(`${habitablePlanets.length} habitable planets found!`);
    });