Days from now
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()
andDate.prototype.getDate()
to update the date accordingly and set to the result usingDate.prototype.setDate()
. - Use
Date.prototype.toISOString()
to return a string inyyyy-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)