Other

  1. Sequence
  2. Check if variable is nil?
  3. Single quotes vs double quotes
  4. No type-checking?
  5. Divide by zero is Infinity
  6. Require other files
  7. List Methods
  8. Checking the slides
  9. Crystal mine
  10. Ameba Linter
  11. Gravatar
  12. Try Crystal
  13. STDERR, STDOUT
  14. Return Boolean
  15. Symbols
  16. Docspec
  17. require
  18. Constants
  19. Multiple assignment
  20. Chained assignment
  21. Int methods: Times
  22. Int64 Zero
  23. Question mark: ?
  24. Exclamation mark: !
  25. Ampersand: &
  26. STDIN don't accept nil
  27. Math
  28. Proc
  29. Enums
  30. Type of array elements
  31. Environment variables
  32. Int32 or Nil
  33. Resources