Google Sheet If dropdown - google-sheets

Question

I have drop down for column A where I want to select value from drop down only for certain times (ie. 3 times), after I select value from dropdown 3 times, if I try to select it 4th time, value should be removed from dropdown or not able to select. Is this possible using excel or google sheet?
https://docs.google.com/spreadsheets/d/1nbXAkK565V24KDTAzE68q8rQgQWzn-jDJz_6piNYyEw/edit?usp=sharing
In above google sheet, I had selected Red 3 times, now if I want to select Red 4th time, I should not be able to select or Red should be removed from list.
I know using excel VBA, I can do same using below code, but can we add same to google sheets?
Option Explicit
Private Sub Worksheet_Change(ByVal Target As Range)
Dim rngDV As Range
Dim oldVal As String
Dim newVal As String
Dim lVal As Long
Dim check2 As Long
If Target.Count > 2 Then GoTo exitHandler
On Error Resume Next
Set rngDV = Cells.SpecialCells(xlCellTypeAllValidation)
On Error GoTo exitHandler
If rngDV Is Nothing Then GoTo exitHandler
If Intersect(Target, rngDV) Is Nothing Then
'do nothing
Else
Application.EnableEvents = False
newVal = Target.Value
Application.Undo
oldVal = Target.Value
Target.Value = newVal
lVal = Application.WorksheetFunction _
.CountIf(Columns(Target.Column), _
"*" & newVal & "*")
If lVal > 3 Then
If newVal = "" Then
'do nothing
Else
MsgBox "Not available"
Target.Value = oldVal
End If
Else
If Target.Column >= 47 And Target.Column <= 56 Then
If oldVal = "" Then
'do nothing
Else
If newVal = "" Then
'do nothing
Else
Target.Value = oldVal _
& ", " & newVal
End If
End If
End If
End If
End If
exitHandler:
Application.EnableEvents = True
End Sub

Answer 1

So after doing some research I found the way of achieving what you were aiming for here.
Solution
In the class data validation it mentions a method to set the validation to null within the range class. You can check more details about this method here. In that method it mentions that if the parameter is set to null, it will disable the data validation (dropdowns) therefore not allowing to select other values.
Here is a piece of sample code self explained with comments to achieve what you want in your specific case:
function onEdit(){
// get the sheet and values to check if in that range there are more than 3 elements selected
var ss = SpreadsheetApp.getActiveSheet();
var values = ss.getRange('A1:A18').getValues();
// this variable is for counting the amount of elements selected
var count = 0;
for(i=0;i<values.flat().length;i++){
// if an element in that range is not empty
if(values.flat()[i]!=''){
count++;
}
}
// if the count is over 3 then disable the dropdowns
if(count>3){
ss.getRange('A1:A18').setDataValidation(null);
}
}
I hope this has helped you. Let me know if you need anything else or if you did not understood something. :)