Smell your Code! @ IET-KFUPM PATW
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This is the presentation I gave at the IET-KFUPM Present Around The World competition (http://iet.ikfupm.com/patw2011/), for which I was the second runner-up. It is based on an earlier presentation I gave at Free Dimension, the company I worked for at the time.
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Smell your Code! @ IET-KFUPM PATW
- 1. Smell your Code! Yaser Sulaiman 1
- 2. 2
- 3. Our road map 3
- 4. Who? What? Why? How? 4
- 5. If you can take away only 1 lesson… 5
- 7. This rule is so important… 7
- 8. I must break it! 8
- 10. Who? What? Why? How? 10
- 11. “Who are you?” 11
- 12. A scientist, not an engineer (I probably should be doing this @ ACM, not IET) 12
- 13. 13
- 14. 14
- 15. 15
- 16. 16
- 17. 17
- 18. 18
- 19. 19
- 20. 20
- 21. logo stolen from Kyle Usbeck 21
- 22. logo by Yukihiro Matsumoto 22
- 23. “You talkin’ to me?” 23
- 24. Are you a software developer? 24
- 25. If not, do you write code? 25
- 26. If not, would you be remotely interested in writing cleaner code and making your life easier? 26
- 27. If not, you’re free to zone out 27
- 28. “Why should I listen to you?” 28
- 29. I won’t give you the “I’m a passionate software developer” BS 29
- 30. I’ve a terminal illness 30
- 31. Make that 2 terminal illnesses 31
- 32. Perfectionism & OCD 32
- 33. photo by X.u.k.i 33
- 34. Who? What? Why? How? 34
- 35. “Code smells?! Can I smell my code?!” 35
- 36. photo by lanceball 36
- 37. Yes you can, but not with your nose 37
- 38. Code smells are warning signs 38
- 39. photo by pj_in_oz 39
- 40. They’re surface indications of deeper problems 40
- 41. photo by BenChenowethWork 41
- 42. They’re surface indications of deeper problems 42
- 43. A code smell ⇏ a problem 43
- 44. Who? What? Why? How? 44
- 45. The bigger picture 45
- 46. Software Quality Code Quality Code Smells not to scale 46
- 47. Writing HQ code should be the priority 47
- 48. read HQ code = easy to understand change 48
- 49. In the short term, HQ code may cost more 49
- 50. photo by theresaanna 50
- 51. Easier to change ≈ less costly 51
- 52. In the long run, HQ code costs less 52
- 53. One path to cleaner code goes through code smells 53
- 54. Who? What? Why? How? 54
- 55. There’re many code smells 55
- 56. The following smells are just a small subset 56
- 57. They’re the ones that drives me crazy the most 57
- 58. Code Smell #1 58
- 59. DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code 59
- 60. The nastiest code smell 60
- 61. DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code DupIicated code 61
- 62. Code Smell #2 62
- 63. functions.With(just, way, too, many, parameters, and, then, even, some, more) 63
- 64. How many is too many? 64
- 65. Steve McConnell: >7±2 65
- 66. Robert C. “Uncle Bob” Martin: >3 66
- 67. Code Smell #3 67
- 68. Not following a coding convention/standard/style consistently 68
- 69. stolen from EmacsWiki 69
- 70. Not following a coding convention/standard/style consistently 70
- 71. The specifics doesn’t really matter; what matters most is consistency 71
- 72. Code Smell #4 72
- 73. // code.CommentOut(); 73
- 74. Don’t get me wrong 74
- 75. When you’re experimenting, comment code to your heart's content 75
- 76. Just remember to clean up after yourself 76
- 77. And don’t commit commented-out code 77
- 78. “Commented-out code is an abomination.”—Uncle Bob photo used with permission of Uncle Bob 78
- 79. Commented-out code makes Uncle Bob angry 79
- 80. It makes me angry 80
- 81. photo by tomazstolfa 81
- 82. Code Smell #5 82
- 83. redundant // This is a comment 83
- 84. Comments should focus on Who? What? Why? How? 84
- 85. Who? What? Why? How? 85
- 86. I may have come off as an a$$ 86
- 87. My code smells as bad as everyone else’s.. sometimes even worse 87
- 88. But I’m aware of my smells 88
- 89. I try my best to prevent them 89
- 90. I don’t ignore them; I deal with them 90
- 91. I smell my code 91
- 92. You should smell your code too 92
- 93. When you code, take note of your nose It should be open, not close For an open nose leads to an open mind And that’s the best rhyme I was able to find 93
- 94. If you want to sniff more… 94
- 95. more than just code smells 95