Blue Pill x Red Pill

Talk presented to computer science students at Universidade de São Paulo(USP) and USP São Carlos about important and interesting subjects that are usually not discussed in college. Such subjects include: Agile, Extreme Programming, dynamic languages, web frameworks, functional programming, Git and others.

Topics: https://gist.github.com/carlosgaldino/3291725

Transcript

1. Blue Pill x Red Pill
2. @carlosgaldino
4. WARNING!
7. Manifesto for Agile Software Development We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more.
8. Manifesto for Agile Software Development We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more.
9. Manifesto for Agile Software Development We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more.
10. Manifesto for Agile Software Development We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more.
11. Manifesto for Agile Software Development We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more.
12. Scrum Extreme Programming
13. TDD
14. Test Driven Development
15. RED GREEN REFACTOR
16. Types
19. Object-oriented programming
21. def factorial(n) (1..n).inject(&:*) end
23. Design Patterns
24. SOLID
26. Meaningful names
27. int d; // elapsed time in days
28. int elapsedTimeInDays;
29. public List<int[]> getThem() { List<int[]> list1 = new ArrayList<int[]>(); for (int[] x : theList) if (x[0] == 4) list1.add(x); return list1; }
30. public List<Cell> getFlaggedCells() { List<Cell> flaggedCells = new ArrayList<Cell>(); for (Cell cell : gameBoard) if (cell.isFlagged()) flaggedCells.add(cell); return flaggedCells; }
31. Class names
32. Info Data Manager Processor
33. Info Data Manager Processor
34. Customer WikiPage Account AddressParser
35. Functions/Methods
36. postPayment deletePage save
37. Complex fulcrumPoint = new Complex(23.0);
38. Complex fulcrumPoint = new Complex(23.0);
39. Complex fulcrumPoint = Complex.FromRealNumber(23.0);
40. Comments
41. // Check to see if the employee is // eligible for full benefits if ((employee.flags & HOURLY_FLAG) && (employee.age > 65))
42. if (employee.isEligibleForFullBenefits())
43. // Utility method that returns when this.closed is true. Throws an exception // if the timeout is reached. public synchronized void waitForClose(final long timeoutMillis) throws Exception { if(!closed) { wait(timeoutMillis); if(!closed) throw new Exception("MockResponseSender could not be closed"); } }
44. The Law of Demeter
45. a.getB().getC().doSomething();
46. You can interact: 1. With yourself 2. With parameters that were passed in to the method 3. Any objects you created 4. Any directly held component objects
47. a.doSomethingWithB();
48. DRY
49. Don’t repeat yourself
50. Tell, Don’t Ask
51. if system.temperature() > 100 { system.sound_alarm(); }
52. system.checkOverheating();
53. Functional programming
55. f(x)
56. Pure functions
57. Higher-order functions
58. Immutable data
59. Recursion
60. Lazy Evaluation
62. Version control systems
64. Subversion
65. git
66. mercurial
67. Open source
70. Resources
72. Blogs
73. Events
74. Videos
75. Books
85. Online courses
87. Udacity
88. bit.ly/topics_bprp
89. www.rubyonrailsonline.com.br
90. Thanks! @carlosgaldino