Graphics & Credit from: https://www.sketchappsources.com/free-source/3805-clean-web-login-form-sketch-freebie-resource.html. A simple Login page of a webpage using interactive Proto.io components.

Form validation using variables and states

skills assessment for students

A skills assessment for students

An example project on how to create randomise dice using variables along with containers and states to recreate various dice. Use the + / - icons to add more of each dice. Includes all variations of basic polyhedral dice for use.

Going to a screen depending on a picker selection using states, variables and the 'Fire an items event' action