Converting dates in YYYY-MM-DD to DD-MONTH in JavaScript

Question

I have the following dates as strings..

2016-10-14
2016-10-15
2016-10-16
2016-10-17
2016-10-18
2016-10-19
2016-10-20

How can I dynamically conv

Answer 1

There is no need for a Date object, and certainly you should not parse strings with the Date constructor.

Note that:

new Date('2016-10-14')

will return a date for 13 October for users with a time zone west of Greenwich.

Just reformat the string:

/* Reformat a date like 2016-10-14 as dd MMM
** @param {string} s - date string to reformat
** @returns {string}
*/
function formatDDMMM(s) {
  var months = 'Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec'.split(' ');
  var b = s.split(/\D/);
  return b[2] + ' ' + months[b[1]-1];
}

console.log(formatDDMMM('2016-10-14'));