Passing action type in function parameter

Question

I am trying to pass in the insertError function parameter the type of action that needs to take place.

  insertErrorClass(val, action) {
    val.classList.action(classNames.INVALID);
   }


Example:

  insertErrorClass(val, 'add') {
    val.classList.add(classNames.INVALID);
   }

  insertErrorClass(val, 'remove') {
    val.classList.remove(classNames.INVALID);
   }

I can do it using if statements, but was wondering if there was more efficient way of doing it.

If the value in action is a property on classList then you need to use square brackets. — Dave Newton, Dec 07 '18 at 01:11

Andrew Stears · Answer 1 · 2018-12-07T01:35:39.070

0

Try this:

function insertErrorClass(val, action) {
   val.classList[action](classNames.INVALID);
}

And calling your function as so:

insertErrorClass(val, 'add');

or

insertErrorClass(val, 'remove');

edited Dec 07 '18 at 01:35

answered Dec 07 '18 at 01:30

Andrew Stears

43
7

Passing action type in function parameter

1 Answers1