JavaScriptUtils
public static string ToEscapedJavaScriptString(string value, char delimiter, bool appendDelimiters, StringEscapeHandling stringEscapeHandling)
public static void WriteEscapedJavaScriptString(TextWriter writer, string s, char delimiter, bool appendDelimiters, bool[] charEscapeFlags, StringEscapeHandling stringEscapeHandling, IArrayPool<char> bufferPool, ref char writeBuffer)