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Global Day of Coderetreat 2015

Global Day of Coderetreat 2015

Global Day of Coderetreat 2015 presentation from the event in Skopje.

Dalibor Nasevic

November 14, 2015

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  1. What is Coderetreat? Hidden Slide Slower Codereatreat is a day-long,

    intensive practice event, focusing on the fundamentals of software development and design. • Experiment in Safe environment • Deliberate Practice • Get Out of the Comport Zone
  2. Format Hidden Slide Slower • Problem: Conway's Game of Life

    • Pair Programming • Length of Session: 45 minutes • Prefer using Test-Driven Development (TDD) • After each session, pairs should be swapped • After each session, code must be deleted
  3. Goals for the day Hidden Slide Slower • Language agnostic

    • Try not to finish the problem • Try learn new things • Focus on practice and experiment • Have Fun
  4. Hidden Slide Slower • Devised by the British mathematician John

    Horton Conway in 1970 • Zero-player game • Initial state • Evolves based on 4 rules Conway's Game of Life
  5. Hidden Slide Slower Any live cell with fewer than two

    live neighbours dies, as if caused by under-population. Rule 1 ▪
  6. Hidden Slide Slower ▪ ▪ ▪ ▪ ▪ ▪ Any

    live cell with two or three live neighbours lives on to the next generation. Rule 2
  7. Hidden Slide Slower ▪ ▪ ▪ ▪ ▪ ▪ ▪

    ▪ ▪ Any live cell with more than three live neighbours dies, as if by overcrowding. Rule 3
  8. Hidden Slide Slower ▪ ▪ ▪ ▪ ▪ Any dead

    cell with exactly three live neighbours becomes a live cell, as if by reproduction. Rule 4
  9. Static qualities Hidden Slide Slower • Easy to read and

    understand what it does • Easy to find the code to change • Easy to change
  10. 1. Getting familiar with the problem 2. TDD 3. Ping-Pong

    Pairing 4. Methods with max 4 lines and no primitives across method boundaries 5. No in-method branching statements 6. No return values Constraints Hidden Slide Slower
  11. • What, if anything, did you learn today? • What,

    if anything, surprised you today? • What, if anything, will you do differently moving forward? Retrospective Hidden Slide Slower