is there a datatype with thee different values like a boolean

Question

Is there a datatype in javaScript or PHP etc. that can contain just a view different custom values. Like a boolean but with three types. Like something like this:
the value must be one of the following things "above", "under" or "in the middle".

Answer 1

Hey in JavaScript there is no such thing, but you can use number and create some kind of enum like this

const ENUM = {
  ABOVE: 1,
  MIDDLE: 0,
  UNDER: -1
}

and then use it like this:

function acceptValue(en) {
  if (en === ENUM.ABOVE) {
    /* do something */
  }
}