how was nightmare before christmas animated

"Nightmare Before Christmas" is a stop-motion animated movie that was released in 1993. It was directed by Henry Selick and produced by Tim Burton. The movie is about Jack Skellington, the Pumpkin King of Halloween Town, who accidentally discovers Christmas Town and becomes obsessed with taking over the holiday. Jack and his friends try to make Christmas their own, but they soon realize that their plans are causing chaos and mayhem. The movie is known for its unique visual style and dark humor, and it has become a cult classic.