What is the significance of #pragma marks? Why do we need #pragma marks?

Question

What is the purpose of #pragma marks in Xcode? Does their location in .m files matter? Should some #pragma come before all others?

Answer 1

#pragma mark directives show up in Xcode in the menus for direct access to methods. They have no impact on the program at all.

For example, using it with Xcode 4 will make those items appear directly in the Jump Bar.

There is a special pragma mark - which creates a line.