Android Question String replace first

[KZero]

Hello,

how i can replace only the first occurrence in the string
because the regular "string.replace" replaces all instances

i think there is a way with "regex.replace2" but i didn't find any example

thanks in advance

 

[derez]

string.IndexOf(SearchFor as string) will give you the index of first occurrence of the argument in the string, then you can use substring to manipulate it.

 

[Erel]

Log(ReplaceFirst("3434abc abd",   "434", "dddd"))

Sub ReplaceFirst(s As String, SearchFor As String, ReplaceWith As String) As String
   Dim i As Int = s.IndexOf(SearchFor)
   If i > -1 Then
     Return s.SubString2(0, i) & ReplaceWith & s.SubString(i + SearchFor.Length)
   Else
     Return s
   End If
End Sub