JavaScript for getting the previous Monday

Question

I would like for the previous Monday to appear in the field where a user enters today\'s date.

E.g.: If today\'s date is entered 29-Jan-16 t

Answer 1

Thank you @Philippe Dubé-Tremblay for your nice solution (above),

I will just put here the wrapping function for those who, like me, plan to call this function repeatedly.

// Accepts a date as parameter or with no parameter will assume the current date.
const getPreviousMonday = (date = null) => {
  const prevMonday = date && new Date(date.valueOf()) || new Date()
  prevMonday.setDate(prevMonday.getDate() - (prevMonday.getDay() + 6) % 7)
  return prevMonday
}