Android Question How can i count number of extra dots

[Makumbi]

Please help how can i count number of dots i have in my email please help

Dim arrName() As String=Regex.Split(".",Name)
    Log($"Number of commas: ${arrName.Length-1}"$)
    
    If arrName.Length-1 >1 Then
        MsgboxAsync("You have more than one dot in our Email please remove it thanks","More Dots Detected")
        Return
    End If

 

[Brian Dean]

I have not tested this, but it should count the number of "." characters in a string ...

Sub countDots(text As String) As Int
    Dim n As Int = 0
    Dim p As Int = text.IndexOf(".")
    Do While (p > -1)
        n = n + 1
        text = text.SubString(p + 1)
        p = text.IndexOf(".")
    Loop
    Return n
End Sub

 

[angel_]

Maybe:

    If arrName.Length - arrName.Replace(".", "").Length > 1 Then
        MsgboxAsync("You have more than one dot in our Email please remove it thanks","More Dots Detected")
        Return
    End If

 

[Mahares]

lease help how can i count number of dots i have in my email please help

You code would have worked if you escaped the dot. See the code below I corrected for you. This is not better than what Brian or Angel offered. It is just another way to stay with your line of thinking:

Dim name As String =" I decided. to check .out this thread. because it. has a lot. of unnecessary .dots"
    Dim arrName() As String=Regex.Split("\.",name)    '<-----
    Log($"Number of dots: ${arrName.Length-1}"$)   'displays 6
    If arrName.Length-1 >1 Then
        MsgboxAsync("You have more than one dot in our Email please remove it thanks","More Dots Detected")
        Return
    End If

 

[mc73]

Why not use email validation as perfomed here?

 

[aeric]

Why not use email validation as perfomed here?

And I use this:

✅ Validate a correctly formatted email address

SubName: Validate a users email address format using a regular expression. Description: You can use the following code to validate that a user has entered a correctly formatted email address. Characters like "@ , > = .. etc" are checked and the email address format is validated via the regular...

www.b4x.com

 

[aeric]

By the way, I thought email with subdomain is valid.