Android Code Snippet [B4X] Check Valid E-Mail Format

Private Sub EmailAddressCheck(email As String) As Boolean   
    Return Regex.IsMatch("^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$",email)
End Sub

If EmailAddressCheck("[email protected]") = True Then
        Log("E-Mail is valid")
        Else
        Log("E-Mail is not valid")
    End If

 

[aeric]

    If Regex.IsMatch(".+@.+\..+", req.GetParameter("email")) = False Then
        resp.SendError(500, "Invalid email address.")
    End If

I found this code inside FormExampleHelper class in ServerHelloWorld.zip.

 

[toby]

    If Regex.IsMatch(".+@.+\..+", req.GetParameter("email")) = False Then
        resp.SendError(500, "Invalid email address.")
    End If

I found this code inside FormExampleHelper class in ServerHelloWorld.zip.

It's for B4J only; correct me if I'm wrong.

 

[Alexander Stolte]

It's for B4J only; correct me if I'm wrong.

No.

If Regex.IsMatch(".+@.+\..+", req.GetParameter("email")) = False Then
        Log("Invalid email address.")
    End If