StringBuilder

Cobra strings are immutable. To create something like a mutable string, use StringBuilder:

def visitMessage(url) as String
    sb = StringBuilder()
    sb.appendLine('Hello [.name],')
    sb.appendLine('Please visit [ur].')
    return sb.toString

If you would like to use newlines in your code, try CobraCore.newLine which returns the newline specific to the current platform such as '\n' or '\r\n':

def visitMessage(url) as String
    nl = CobraCore.newLine
    sb = StringBuilder()
    sb.append('Hello [.name],[nl]')
    sb.append('Please visit [ur].[nl]')
    return sb.toString

For more information on the StringBuilder class, see  Google(C# StringBuilder)

See also: LibraryTopics