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Clean Code 101

Marko Kunic
March 10, 2018
Programming
0
500

Clean Code 101

Writing code that is readable by humans is what we should all want, after all, the machine is not interested in what we write, it is important for the people with who we are in the team or the person who will continue the project after us. Talk is about the basics of Clean Coda and the rules that we should adhere to.

Marko Kunic

March 10, 2018
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Transcript

  1. @kunicmarko20
    Clean Code 101

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    - No abbreviation

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    - No abbreviation
    - Intention revealing names
    - // Comments === bad code (not always)

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  13. @kunicmarko20

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    - No abbreviation
    - Intention revealing names
    - // Comments === bad code (not always)
    - No dead code

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  15. @kunicmarko20

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  16. @kunicmarko20

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  17. @kunicmarko20
    - No abbreviation
    - Intention revealing names
    - // Comments === bad code (not always)
    - No dead code
    - No magic numbers

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  18. @kunicmarko20

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  19. @kunicmarko20

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  20. @kunicmarko20
    - No abbreviation
    - Intention revealing names
    - // Comments === bad code (not always)
    - No dead code
    - No magic numbers
    - No one-time variables

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  21. @kunicmarko20

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    - No abbreviation
    - Intention revealing names
    - // Comments === bad code (not always)
    - No dead code
    - No magic numbers
    - No one-time variables
    - No duplication

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  23. @kunicmarko20
    DRY
    Don't repeat yourself

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  24. @kunicmarko20
    Functions

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    Functions
    - One responsibility

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    Functions
    - One responsibility
    - Multiple smaller functions

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  29. @kunicmarko20
    KISS
    Keep it simple, stupid

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  35. @kunicmarko20

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  36. @kunicmarko20
    Functions
    - One responsibility
    - Multiple smaller functions
    - No side effects

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  37. @kunicmarko20

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  38. @kunicmarko20
    Functions
    - One responsibility
    - Multiple smaller functions
    - No side effects
    - Only one level of indentation

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  39. @kunicmarko20

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  40. @kunicmarko20

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  41. @kunicmarko20
    Functions
    - One responsibility
    - Multiple smaller functions
    - No side effects
    - Only one level of indentation
    - Early returns, avoid else

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  42. @kunicmarko20

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  43. @kunicmarko20

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  44. @kunicmarko20
    Functions
    - One responsibility
    - Multiple smaller functions
    - No side effects
    - Only one level of indentation
    - Early returns, avoid else
    - Avoid flag arguments

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  45. @kunicmarko20

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  46. @kunicmarko20

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  47. @kunicmarko20

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  48. @kunicmarko20
    Law of Demeter

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  52. @kunicmarko20
    Refactoring

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    When?

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  54. @kunicmarko20
    Always.

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  55. @kunicmarko20

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  56. @kunicmarko20
    Boy Scout Rule
    Leave the campground cleaner than you found it

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  57. @kunicmarko20

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  58. @kunicmarko20
    Want more details?

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  59. @kunicmarko20
    The End

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