This blog post includes some shortcuts, but many more were demonstrated in the video and not all of them were mentioned here:
⌘[ or Ctrl+Alt+left arrow to navigate back – makes it easy to navigate between all the places you’ve been while writing code and running tests
⌘[ or Ctrl+Alt+left arrow to navigate back – makes it easy to navigate between all the places you’ve been while writing code and running tests
⌘⇧T or Ctrl+Shift+T to navigate between test and test subject. This is explored in the Top 5 Navigation Tips (blog and video).
⌃⇧J or Ctrl+Shift+J to join Lines to create compiling code.
⇧⌘⏎ or Ctrl+Shift+Enter to complete Statement close off the brackets and statement, and it also formats the code too.
⌃⇧Space or Ctrl+Shift+Space to use smart completion