public bool AllowNonWhiteCharactersAfterObject

Sets whatever it is acceptable for input string to have other than non-white characters after end of JSON or JArray object.

public string DebugIDForExceptions

Sets debug ID for this string parse and resulting JSON object. If any exception occurres during parsing or JSON handling after succesful parse, this debug ID will be added to exception message.

This is typically useful in production builds where only exception message is logged but full stacktrace may not be available. Typical parse error could be that source string is null or empty for some reason. Without adding this debug id to the parse, exception is just "ParseException: Source string is empty" which isn't very helpful if project is parsing lots of incoming JSON and so it is not clear which one causes this error. When adding this debug id to the parse, above exception would be for example "ParseException: Source string is empty - Parse Debug ID: Backend own currency settings", which pinpoints the problem instantly.

public bool FixRoundedFloatingPointMinMaxValues

If set true, numeric values that seem to be just rounded float.MinValue, float.MaxValue, double.MinValue or double.MaxValue are set to those exact values.

C# floating point numbers rounding sometimes causes unwanted effects. In some systems, for example double.Parse(double.MaxValue.ToString()) will cause number overflow exception. TotalJSON will use exact values when creating JSON formatted string using CreateString() method. But if JSON is created using other methods and it is possible JSON may contain rounded floating point min/max values, it is better to set this setting true so that parsed values are what they are expected to be.

public int ParseStartIndex

Sets index of input string where parsing JSON or JArray object is started.