30-seconds-of-code/snippets/daysFromNow.md

title, tags, expertise, firstSeen, lastUpdated

title	tags	expertise	firstSeen	lastUpdated
Days from now	date	beginner	2020-10-09T02:49:17+03:00	2022-01-30T11:48:07+03:00

Calculates the date of n days from today as a string representation.

• Use the Date constructor to get the current date.
• Use Math.abs() and Date.prototype.getDate() to update the date accordingly and set to the result using Date.prototype.setDate().
• Use Date.prototype.toISOString() to return a string in yyyy-mm-dd format.

const daysFromNow = n => {
  let d = new Date();
  d.setDate(d.getDate() + Math.abs(n));
  return d.toISOString().split('T')[0];
};

daysFromNow(5); // 2020-10-13 (if current date is 2020-10-08)