vb.net - Encode string to UTF-8

Question

I\'ve made a class to encode a string

Public Class UTF8
    Public Shared Function encode(ByVal str As String)
        Dim utf8Encoding As New System.Text.UT         


        

Answer 1

We can check if a string is UTF-8 by examining the string BOM value. This is the correct code sample:

Public Shared Function encode(ByVal str As String) As String
    'supply True as the construction parameter to indicate
    'that you wanted the class to emit BOM (Byte Order Mark)
    'NOTE: this BOM value is the indicator of a UTF-8 string
    Dim utf8Encoding As New System.Text.UTF8Encoding(True)
    Dim encodedString() As Byte

    encodedString = utf8Encoding.GetBytes(str)

    Return utf8Encoding.GetString(encodedString)
End Function