Sangmin Shim is a senior JavaScript developer working at NHN and the creator of the JavaScript animation library, Collie. He is very interested in making JavaScript apps run faster and more smoothly. Sangmin is the author of "What You Need to Know About JavaScript's Performance" and also writes mobile games using Collie.

More articles by this author

Introducing Collie

(Feb 11, 2013)

Create a simple interactive animation using Collie and JavaScript.