Описание тега default-parameters
A default parameter is a function or method parameter that has a default value provided to it. If the user does not supply a value for this parameter, the default value will be used. If the user does supply a value for the default parameter, the user supplied value is used.
A default parameter is a function or method parameter that has a default value provided to it. If the user does not supply a value for this parameter, the default value will be used. If the user does supply a value for the default parameter, the user supplied value is used.