Format Date Advanced

Read the guideline before start

Time flies, standards change. Let's get rid of the routine of changing the date format.

Task description:

Create a formatDate function that accepts the date string, the old fromFormat array and the new toFormat array. Function returns given date in new format.

The function can change a separator, reorder the date parts of convert a year from 4 digits to 2 digits and back.

• When converting from YYYY to YY just use 2 last digit (1997 -> 97).
• When converting from YY to YYYY use 20YY if YY < 30 and 19YY otherwise.

Examples:

formatDate(
  '2020-02-18',
  ['YYYY', 'MM', 'DD', '-'],
  ['YYYY', 'MM', 'DD', '.'],
); // '2020.02.18'

formatDate(
  '2020-02-18',
  ['YYYY', 'MM', 'DD', '-'],
  ['DD', 'MM', 'YYYY', '.'],
); // '18.02.2020'

formatDate(
  '18-02-2020',
  ['DD', 'MM', 'YYYY', '-'],
  ['DD', 'MM', 'YY', '/'],
); // '18/02/20'

formatDate(
  '20/02/18',
  ['YY', 'MM', 'DD', '/'],
  ['YYYY', 'MM', 'DD', '.'],
); // '2020.02.18'

formatDate(
  '97/02/18',
  ['YY', 'MM', 'DD', '/'],
  ['DD', 'MM', 'YYYY', '.'],
); // '18.02.1997'