Session 2 Practice Tasks

The assignments listed here should take you approximately 2 hours.

To start this assignment, click the button in the upper right-hand corner that says Fork. This is now your copy of the document. Click the Edit button when you're ready to start adding your answers. To save your work, click the green button in the bottom right-hand corner. You can always come back and re-edit your gist.

1. Documentation and Googling (75 min)

Documentation of a langauge, framework, or tool is the information that describes its functionality. For this part of the practice tasks, you're going to practice digging into documentation and other reference material.

NOTE: The linked documentation for each question below is a good starting place, but you should also be practicing your Googling skills and sifting through the results to find relevant and helpful sites.

2. Data Types (15 min)

Imagine that you're taking your favorite board game and turning it into a computer-based game.

Name of board game: Chess
Use the space below to categorize game data into each of the following data types. You should have a minimum of two pieces of data for each category.

String data: "Chess pieces" "Chess Board"
Integer and/or float data: "32" "1"
Boolean data: If 32 pieces and 1 board are present then play. True and True = True True and False = False False and True = False False and False = False
Array data:['Pawn', 'Rook', 'Knight', 'Bishop', 'King', 'Queen'] [8, 2, 2, 2, 1, 1]
Hash or Object data: {"WhitePawn" : 8, "WhiteRook" : 2, "WhiteKnight" : 2, "WhiteBishop" : 2, "WhiteKing" : 1, "WhiteQueen" : 1} - {"BlackPawn" : 8, "BlackRook" : 2, "BlackKnight" : 2, "BlackBishop" : 2, "BlackKing" : 1, "BlackQueen" : 1}

3. Iteration (30 min)

On a blank sheet of paper, create a diagram that shows how you understand iteration working. Be detailed and get creative! When you're done, take a photo of your diagram and post it in the Mod 0 channel on Slack. Your instructor(s) will provide feedback in a thread. (If you're feeling extra fancy, feel free to create your diagram using software instead of pencil and paper)
Create a list below of three real-life situations where iteration is used. For each situation, explain why it would be an example of iteration.
Washing Dishes- Soak dish in Hot-soapy water, scrub, rinse, dry, repeat till all dishes are washed.
Laundry- Sort clothes, Wash cycle, Dry cycle, Fold and put away, repeat til laundry is complete.
Reading a book- Start book, read a page, repeat until book is finished.
Create a list below of three programming situations where iteration would be used. For each situation, explain why it would be an example of iteration.
Converting Body Weight and Height to metric for each person in a class - Multiply the weight in pounds by 0.45 (the metric conversion factor) Multiply the height in inches by 0.025 (the metric conversion factor), repeat for next person.
Calculate Body Mass Index for each person in a class - Convert body weight and height to metric, square the answer for height, divide the metric weight by the squared height for BMI%, repeat for next person.
Calculate daily water intake for each person in a class - For person take weight in pounds and divide by 2.2, Multiply by age number, divide that sum by 28.3, the result will by the amount of water that person should drink in ounces daily, repeat for next person.

4. Modify your Bash Profile (10 min)

Watch this video and follow each step to modify your own bash profile. As mentioned in the video, you will need this snippet below:

# get current branch in git repo
function parse_git_branch() {
  BRANCH=`git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'`
  if [ ! "${BRANCH}" == "" ]
  then
    STAT=`parse_git_dirty`
    echo "[${BRANCH}${STAT}]"
  else
    echo ""
  fi
}

# get current status of git repo
function parse_git_dirty {
  status=`git status 2>&1 | tee`
  dirty=`echo -n "${status}" 2> /dev/null | grep "modified:" &> /dev/null; echo "$?"`
  untracked=`echo -n "${status}" 2> /dev/null | grep "Untracked files" &> /dev/null; echo "$?"`
  ahead=`echo -n "${status}" 2> /dev/null | grep "Your branch is ahead of" &> /dev/null; echo "$?"`
  newfile=`echo -n "${status}" 2> /dev/null | grep "new file:" &> /dev/null; echo "$?"`
  renamed=`echo -n "${status}" 2> /dev/null | grep "renamed:" &> /dev/null; echo "$?"`
  deleted=`echo -n "${status}" 2> /dev/null | grep "deleted:" &> /dev/null; echo "$?"`
  bits=''
  if [ "${renamed}" == "0" ]; then
    bits=">${bits}"
  fi
  if [ "${ahead}" == "0" ]; then
    bits="*${bits}"
  fi
  if [ "${newfile}" == "0" ]; then
    bits="+${bits}"
  fi
  if [ "${untracked}" == "0" ]; then
    bits="?${bits}"
  fi
  if [ "${deleted}" == "0" ]; then
    bits="x${bits}"
  fi
  if [ "${dirty}" == "0" ]; then
    bits="!${bits}"
  fi
  if [ ! "${bits}" == "" ]; then
    echo " ${bits}"
  else
    echo ""
  fi
}

export PS1="\u\w\`parse_git_branch\`$ "

5. Questions/Comments/Confusions

If you have any questions, comments, or confusions from the any of the readings that you would an instructor to address, list them below:

Nice job! I like your logical operators real life example here: True and True = True.

Loomus/mod_0_session_2_practice_tasks.md Secret

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