Days from now

OSCC · JavaScript, Date · Jan 30, 2022

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)

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