1.
Code Excellence
for the
Average Programmer
By Llewellyn Falco & Woody Zuill

2.
How many are working
with legacy code?
2

3.
VS

4.
Goal:
Simple Techniques
for Code Excellence

5.
Project:
Charting Project
6

6.
the golden rule
Leave things BETTER
than you found them

7.
Never be more than 2 minutes away
from checking in and going home

8.
Arm Yourself

9.
Arm Yourself
Tests

10.
Arm Yourself
Tests
Tools

11.
Arm Yourself
Tests
Tools
Patterns

12.
What makes code
hard to work with?

13.
Remove the 3 C’s...

14.
Remove the 3 C’s...
Clutter

15.
Remove the 3 C’s...
Clutter
Complexity

16.
Remove the 3 C’s...
Clutter
Complexity
Cleverness

17.
Removing Clutter
Definition : Clutter is anything in your code that does
not add value.

18.
Removing Clutter
Definition : Clutter is anything in your code that does
not add value.
Format your code

19.
Removing Clutter
Definition : Clutter is anything in your code that does
not add value.
Format your code
Delete comments

20.
Removing Clutter
Definition : Clutter is anything in your code that does
not add value.
Format your code
Delete comments
Delete dead code

21.
Removing Clutter
Definition : Clutter is anything in your code that does
not add value.
Format your code
Delete comments
Delete dead code
Delete unnecessary code

22.
Removing Complexity

23.
Removing Complexity
Bad Names

24.
Removing Complexity
Bad Names
Long Methods

25.
Removing Complexity
Bad Names
Long Methods
Deep Conditionals (if/for/while/switch)

26.
Removing Complexity
Bad Names
Long Methods
Deep Conditionals (if/for/while/switch)
Magic Numbers

27.
Removing Complexity
Bad Names
Long Methods
Deep Conditionals (if/for/while/switch)
Magic Numbers
Improper Variable Scoping

28.
Removing Complexity
Bad Names
Long Methods
Deep Conditionals (if/for/while/switch)
Magic Numbers
Improper Variable Scoping
Missing Encapsulation

29.
Removing Complexity
Bad Names
Long Methods
Deep Conditionals (if/for/while/switch)
Magic Numbers
Improper Variable Scoping
Missing Encapsulation
Obscure Code Blocks

30.
Removing Cleverness
“If it’s simple and elegant, you wouldn’t refer to it
as ‘clever’”

31.
Removing Cleverness
“If it’s simple and elegant, you wouldn’t refer to it
as ‘clever’”
Cryptic Code

32.
Removing Cleverness
“If it’s simple and elegant, you wouldn’t refer to it
as ‘clever’”
Cryptic Code
Abbreviated Code

33.
Removing Cleverness
“If it’s simple and elegant, you wouldn’t refer to it
as ‘clever’”
Cryptic Code
Abbreviated Code
Hijacking a Method(changing its intent for your
own purposes)

34.
... and the 3 D’s

35.
... and the 3 D’s
Duplication

36.
... and the 3 D’s
Duplication
Duplication

37.
... and the 3 D’s
Duplication
Duplication
Duplication

38.
Our code base is just
a big mess, and no
one is happy working
in it.

39.
Next Steps
:-)
1-2

40.
Next Steps
Spring Cleaning Week - Start
each task with 25 minutes of
cleaning with a co-worker.
:-)
1-2

41.
Next Steps
2-2

42.
Next Steps
Books
2-2

43.
Next Steps
Books
‘Clean Code’ by Robert Martin
2-2

44.
Next Steps
Books
‘Clean Code’ by Robert Martin
‘Working Effectively with
Legacy Code’ by Michael Feathers
2-2

45.
What we offer

46.
What we offer
• Day Classes on site
•Single day class to educate & train employees
on a single aspect of agile

47.
What we offer
• Day Classes on site
•Single day class to educate & train employees
on a single aspect of agile
• On site Coaching
•Minimum 2 weeks working on site with
employees on their stuff.
•Training/Mentoring
•Setup of framework
•Source Control
•Automated Builds
•Continuous integration
•Work environment

48.
www.ApprovalTests.com
check here for more information
about how we actually tested the code

49.
Contact
Woody Zuill
wzuill@yahoo.com
Llewellyn Falco
info@spunlabs.com

50.
Goal:
Simple Techniques
for Code Excellence