by Brian Gillham (7 Submissions)
Category: VB function enhancement
Compatability: Visual Basic 3.0
Difficulty: Intermediate
Date Added: Wed 3rd February 2021
Rating: 
(7 Votes)
Find if a value exists in an array WITHOUT LOOPING. Often we need to find out if a value exists in an array. This one does it VERY FAST.
NOTE: This Function only return True / False regarding the Existence of a Value. If you need the Index you will have to LOOP.
VBcodersPublic Function IsInArray(FindValue As Variant, arrSearch As Variant) As Boolean
On Error GoTo LocalError
If Not IsArray(arrSearch) Then Exit Function
If Not IsNumeric(FindValue) Then FindValue = UCase(FindValue)
IsInArray = InStr(1, vbNullChar & Join(arrSearch, vbNullChar) & vbNullChar, vbNullChar & FindValue & vbNullChar) > 0
Exit Function
LocalError:
'Justin (just in case)
End Function
