CSVParse for Node.js


Option cast_date

The cast_date option convert the CSV field to a JavaScript date. It requires the cast option to be active.

The implementation relies on Date.parse. The CSV value is left untouched if the function returns NaN.


This option was named auto_parse_date until version 2.


When active cast_date with true, every field is tested with Date.parse. When the convertion to a JavaScript date succeed, the new date is returned. Otherwise, the original value is returned.

import assert from 'node:assert';
import { parse } from 'csv-parse/sync';

const data = `
const records = parse(data, {
  cast: true,
  cast_date: true
assert.deepStrictEqual(records, [
  [ new Date('2000-01-01T00:00:00.000Z'), 'date1' ],
  [ new Date('2020-01-01T00:00:00.000Z'), 'date2' ]


The Node.js CSV project is an open source product hosted on GitHub and developed by Adaltas.