function getMonthName(monthNumber) {
  const date = new Date();
  date.setMonth(monthNumber - 1);

  return date.toLocaleString([], { month: 'long' });
}

The current day of month will have an impact on the behavior of this method. Conceptually it will add the number of days given by the current day of the month to the 1st day of the new month specified as the parameter, to return the new date. For example, if the current value is 31st January 2016, calling setMonth with a value of 1 will return 2nd March 2016. This is because in 2016 February had 29 days.

  • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
    38·
    8 months ago

    Exactly, it’s better to not have these sorts of “conveniences” than to create weird pitfalls. I find a lot of crazy Js behaviors are ultimately a result of Js trying to be accommodating of inputs that should just be straight up rejected.