SlideShare a Scribd company logo
GDCR ’17 PUNE
RED PANDA
18 Nov 2017
CODERETREAT
WHY
IN SESSIONS
FOCUS
▸ 4 rules of Simple design
▸ Passes tests
▸ No Duplication
▸ Reveal Intention (Good names)
▸ Small
PROBLEM STATEMENT
GAME OF LIFE
▸ Any live cell with fewer than two live neighbours dies, as if
caused by underpopulation.
▸ Any live cell with two or three live neighbours lives on to the
next generation.
▸ Any live cell with more than three live neighbours dies, as if by
overpopulation.
▸ Any dead cell with exactly three live neighbours becomes a live
cell, as if by reproduction.
LOOK FOR
DESIGN SMELL
▸ PRIMITIVE OBSESSION
▸ DUPLICATION
▸ LONG NAMES
▸ UNCLEAR INTENTION
POST LUNCH
RULES
▸ No if statements
▸ No loops
▸ Small Methods (<5 lines, 1-line?)
▸ No language primitives
▸ TDD As If You Meant It
HOW WAS THE
DAY?
TEXT
RETROSPECTIVE
▸ What, if anything, did you learn today?
▸ What, if anything, surprised you today?
▸ What, if anything, will you do differently in the future?
THANKS

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Code retreat at Red Panda

  • 1. GDCR ’17 PUNE RED PANDA 18 Nov 2017
  • 3. IN SESSIONS FOCUS ▸ 4 rules of Simple design ▸ Passes tests ▸ No Duplication ▸ Reveal Intention (Good names) ▸ Small
  • 4. PROBLEM STATEMENT GAME OF LIFE ▸ Any live cell with fewer than two live neighbours dies, as if caused by underpopulation. ▸ Any live cell with two or three live neighbours lives on to the next generation. ▸ Any live cell with more than three live neighbours dies, as if by overpopulation. ▸ Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction.
  • 5. LOOK FOR DESIGN SMELL ▸ PRIMITIVE OBSESSION ▸ DUPLICATION ▸ LONG NAMES ▸ UNCLEAR INTENTION
  • 6. POST LUNCH RULES ▸ No if statements ▸ No loops ▸ Small Methods (<5 lines, 1-line?) ▸ No language primitives ▸ TDD As If You Meant It
  • 8. TEXT RETROSPECTIVE ▸ What, if anything, did you learn today? ▸ What, if anything, surprised you today? ▸ What, if anything, will you do differently in the future?