Gets a parameter.
# S3 method for HttpRequest
getParameter(this, name, default=NULL, drop=TRUE, ...)Name of parameter to be retrieved.
Value to be returned if parameter is missing.
Additional arguments passed to *getParameters().
Returns the value(s) of the parameter either as a single value or
as a named list.
If the parameter does not exist, the default value is returned as is.
*hasParameter().
*getParameters().
For more information see HttpRequest.