TIL Adds days to a date

POSTED ON: Nov 11, 2021

Maybe you just need some quick date math, and don't want to use a date library.

const addDaysToDate = (date, n) => {
  date.setDate(date.getDate() + n);
  return date.toISOString().split('T')[0];
};
addDaysToDate('2021-0-10', -10); // '2020-12-31'

REFERENCE:
21 Useful JavaScript Snippets For Everyday Development

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