Form validation using variables and states

Graphics & credit from: https://www.sketchappsources.com/free-source/3362-nyan-cat-vector-sketch-freebie-resource.html. A small basic project animating this small design including its theme song. I do not own any of the following graphical and audio content. All rights are reserved to the appropriate entities.

Popup message on iPhone simulation Message appears in 2 seconds after screen loads / swipe left to dismiss / tap message app to run again

Design Credits: https://www.sketchappsources.com/free-source/4675-marier-shopping-ui-kit-ebizmirli-sketch-freebie-resource.html

Shopping cart using variables to calculate selected item amount, and total costs using variables. Project also includes a thumbnail gallery

Used variables to change filters on an image

45 random acts of kindness you can do today!

The project contains numerous examples completed using variables and conditional logic.