Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS

Taylor Smith
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

Why are global variables so bad?

So, global variables seem super useful if you need information available between different view controllers. I've tried googling articles about it..and everyone says it's a big no no, but doesn't really explain why this is? It seems to work really well in my app for what i'm doing. Can someone help shed some light on this? Pasan Premaratne ?