@fav/type.to-date/lib/from-slashed-ymd.js

Convert a string in various date format to a date object.

'use strict';

var isString = require('@fav/type.is-string');
var isValidDate = require('@fav/type.is-valid-date');

var newDate = require('./new-date');

function fromSlashedYmd(text) {
  if (!isString(text)) {
    return null;
  }

  var result = /^([\+\-]?[0-9]+)\/([0-9]+)\/([0-9]+)$/.exec(text);

  if (!result) {
    return null;
  }

  var year = parseInt(result[1], 10);
  var month = parseInt(result[2], 10);
  var day = parseInt(result[3], 10);

  var date = newDate(year, month - 1, day);
  return isValidDate(date) ? date : null;
}

module.exports = fromSlashedYmd;