This tutorial will give you a basic knowledge of how to reference objects and create variables in Lens Studio. You will also learn about events, and creating conditional statements to customize your events and commands! To learn more about the Lens Studio API visit https://lensstudio.snapchat.com/api/
Some beginner javascript is discussed in this video including arrays, if statements, commands, and syntax. If you would like to learn more about how to use these, check out: https://www.w3schools.com/js/
If you have any suggestions for another tutorial, let me know in the comments!