How Do I Remember All This Gosh Darn Stuff?

Git (dangitgit.com)

Objective-C Block Syntax (goshdarnblocksyntax.com)

C++ Member Pointer Syntax (goshdarnmemberfunctionpointers.com)

C Function Pointer Syntax (goshdarnfunctionpointers.com)

Swift Closure Syntax (goshdarnclosuresyntax.com.com)

Swift Multiple Trailing Closures Syntax (goshdarnmultipletrailingclosuresyntax.com)

Swift If Let Case Syntax (goshdarnifcaseletsyntax.com)

SwiftUI Reference (goshdarnswiftui.com)