Library answers allow access to built-in attributes about the responder's environment or context. They allow you to reach into the internals of Formsort, or the responder's browser, and pull out information that may be useful to you.
Where is the user getting redirected?
Will be set even if not currently redirecting: this is where the responder would be redirected at any point in the flow.
When the flow is being finalized, this is the same as the URL they were finally redirected to.
Which environment is the responder in?
Is the responder on an Android device?
Useful as a condition for displaying an Play Store link if you have an app.
Is the responder on a mobile device, regardless of manufacturer?
Is the responder on an iOS device, such as an iPhone?
Useful as a condition for displaying an App Store link if you have an app.
Has the responder been to this flow before?
The URL of the previous step, useful for back links
The URL that form user arrived from, corresponding to
May be undefined if the user navigated directly to the flow, or if the referring page does not send the referrer per their Content Security Policy.
The responder uuid of the responder.