Check out example codes for "today tomorrow day after tomorrow button html and javascript". It will help you in understanding the concepts better.

Code Example 1

const tomorrow = new Date()
// add 1 day to today
tomorrow.setDate(new Date().getDate() + 1)

const dayAfterTomorrow = new Date()
// add 2 day to today
dayAfterTomorrow.setDate(new Date().getDate() + 2)
//A date instance in JavaScript provides a .setDate() method to set the day of the month. A goody provided by this method: it automatically switches the month in case you’re exceeding the days in a month.
//At first, you need “today” as a reference. Use the new Date() constructor to create a date instance of today. Then, retrieving the day of tomorrow is a calculation of adding one day to the current day of the month using. You can retrieve the day of “today” using the .getDate() method.

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