GSAP Flip Plugin for Animation

GreenSock provides GSAP Flip plugin for free in version 3.9. FLIP is an animation concept that helps create high-performance state change animations. Ryan Mulligan wrote an excellent blog post:

FLIP, created by Paul Lewis, is the acronym for First, Last, Invert and Play. The Flip plugin leverages this technology to enable web developers to easily and smoothly switch elements between states.

Examples of using the GSAP Flip plugin

Using FLIP manually is certainly feasible, but it's tricky. This is a perfect task for the animation library. As Ryan said, GreenSock did:

1. Get the current status
2. Make a status change
3. Call Flip.from(state, options)

Very simple. Ryan used it to create an "Add to Cart" effect:

Just the other day, I also used it to create a "mini photo gallery" that can rotate which picture is the largest on the top:

This happens to be the reason why I ended up writing the blog post "How to loop through classes on HTMLElement" the other day.

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