Deploy a basic web form

Deploy a web form that calculates the distance between two locations:

Add initial data to the form

Initialize the From field with the name of the nearest city; replace the From fields "Location" type with an Association that specifies both the type ("Interpreter" key) and the initial value ("Input" key). Use RuleDelayed () with "Input" so that the value is calculated when the form is used rather than when the form is deployed: