Check Value roArray

Archived
1

Is there a quick way to check for a value in a roArray? Something like in_array?

2

Not that I know of - you just have to search it.

FUNCTION in_array(theArray, value)
  FOR EACH i IN theArray
    IF Type(i) = Type(value) AND i = value THEN RETURN TRUE
  END FOR
  RETURN FALSE
END FUNCTION
3

Much appreciated, thought maybe Brightscript had a function but yours works very well. Thanks again.

4

A better idea would be to add to ifArray:

Index(x as Dynamic) as Integer
Return the index in the list of the first item whose value is x, -1 if not found
(All implementors of ifArray already do ifArrayGet/ifArraySet - also Delete() is harmonious on integer indexing)

If having to check a long (>100) list though, suggest using a dictionary lookup (i.e. ifAssociativeArray.doesExist(), .lookup() ).

By the way @RokuKC - any chance of fixing the equality/inequality operators, so that they don’t puke “Type Mismatch”? I.e. “=” to return True only when both type and value of the arguments match - and False otherwise. Fair and square, no warnings no nothing - it’s already the case in all script languages i can think of (python, javascript, lua, whathaveyou…)

5

Hi @EnTerr , those are good suggestions, and will be taken into consideration if/when possible. :slightly_smiling_face: