RSDComparableSurveyRule

public protocol RSDComparableSurveyRule : RSDSurveyRule, RSDComparable

RSDComparableSurveyRule is a survey rule that matches an expected result to the answer and vends a skip identifier if the match is evaluated to true.

skipToIdentifier
Optional skip identifier for this rule. If available, this will be used as the skip identifier, otherwise the skipToIdentifier will be assumed to be RSDIdentifier.exit
Declaration
Swift

var skipToIdentifier: String?
ruleOperator
The rule operator to apply. If nil, .equal will be assumed unless the expectedAnswer is also nil, in which case .skip will be assumed.
Declaration
Swift

var ruleOperator: RSDSurveyRuleOperator?


                    
                    
                    evaluateRule(with:)

Extension method

For a given result (if any), what is the step that the survey should go to next?

For the RSDComparableSurveyRule, this will evaluate the result using the ruleOperator and the matchingAnswer and return the skipIdentifier if the rule evaluates to true.

Declaration

Swift

public func evaluateRule(with result: RSDResult?) -> String?

Parameters


                                results

The result to evaluate.

Return Value

The identifier to skip to if the result evaluates to true.