Organization: adding prerequisites to practice exercises

[mirkoperillo]

One of the v3 migration requirements is to add what concepts are prerequisites for face with the practice exercise. here more details

The goal of this issue is to give a sort of general overview on this task. We should improve the configuration of 120 exercise. The idea is to claim in a comment of this issue a set of exercise to work on, to avoid some overlapping of work. We will tick every exercise already revisited.

• [ ] accumulate
• [ ] acronym
• [ ] affine-cipher
• [ ] allergies
• [ ] all-your-base
• [ ] alphametics
• [ ] anagram
• [ ] armstrong-numbers
• [ ] atbash-cipher
• [ ] bank-account
• [ ] beer-song
• [ ] binary
• [ ] binary-search
• [ ] binary-search-tree
• [ ] bob
• [ ] book-store
• [ ] bowling
• [ ] change
• [ ] circular-buffer
• [ ] clock
• [ ] collatz-conjecture
• [ ] complex-numbers
• [ ] crypto-square
• [ ] custom-set
• [ ] darts
• [ ] diamond
• [ ] difference-of-squares
• [ ] diffie-hellman
• [ ] dnd-character
• [ ] dominoes
• [ ] error-handling
• [ ] etl
• [ ] flatten-array
• [ ] food-chain
• [ ] forth
• [ ] gigasecond
• [ ] go-counting
• [ ] grade-school
• [ ] grains
• [ ] grep
• [ ] hamming
• [ ] hangman
• [ ] hello-world
• [ ] hexadecimal
• [ ] house
• [ ] isbn-verifier
• [ ] isogram
• [ ] kindergarten-garden
• [ ] knapsack
• [ ] largest-series-product
• [ ] leap
• [ ] linked-list
• [ ] list-ops
• [ ] luhn
• [ ] markdown
• [ ] matching-brackets
• [ ] matrix
• [ ] meetup
• [ ] micro-blog
• [ ] minesweeper
• [ ] nth-prime
• [ ] nucleotide-count
• [ ] ocr-numbers
• [ ] octal
• [ ] palindrome-products
• [ ] pangram
• [ ] parallel-letter-frequency
• [ ] pascals-triangle
• [ ] perfect-numbers
• [ ] phone-number
• [ ] pig-latin
• [ ] poker
• [ ] prime-factors
• [ ] protein-translation
• [ ] proverb
• [ ] pythagorean-triplet
• [ ] queen-attack
• [ ] rail-fence-cipher
• [ ] raindrops
• [ ] rational-numbers
• [ ] rectangles
• [ ] resistor-color
• [ ] resistor-color-duo
• [ ] rest-api
• [ ] reverse-string
• [ ] rna-transcription
• [ ] robot-name
• [ ] robot-simulator
• [ ] roman-numerals
• [ ] rotational-cipher
• [ ] run-length-encoding
• [ ] saddle-points
• [ ] satellite
• [ ] say
• [ ] scrabble-score
• [ ] secret-handshake
• [ ] series
• [ ] sieve
• [ ] simple-cipher
• [ ] simple-linked-list
• [ ] space-age
• [ ] spiral-matrix
• [ ] strain
• [ ] sublist
• [ ] sum-of-multiples
• [ ] tournament
• [ ] transpose
• [ ] tree-building
• [ ] triangle
• [ ] trinary
• [ ] twelve-days
• [ ] two-bucket
• [ ] two-fer
• [ ] variable-length-quantity
• [ ] word-count
• [ ] word-search
• [ ] wordy
• [ ] yacht
• [ ] zebra-puzzle
• [ ] zipper

[ericbalawejder]

This check list is a huge help. I started this issue a few weeks ago and stalled. I started with the first two exercises in the practice array of the config.json file to help understand the requirements.

"practice": [
      {
        "slug": "hello-world",
        "name": "Hello World",
        "uuid": "f77dc7e3-35a8-4300-a7c8-2c1765e9644d",
        "practices": [],
        "prerequisites": [],
        "difficulty": 1,
        "topics": [
          "strings"
        ]
      },
      {
        "slug": "two-fer",
        "name": "Two Fer",
        "uuid": "74515d45-565b-4be2-96c4-77e58efa9257",
        "practices": [],
        "prerequisites": [],
        "difficulty": 1,
        "topics": [
          "conditionals",
          "strings"
        ]
      },

I used the topics for practices. How should we go about adding more to the practices array?

From the docs: "Each prerequisite concept should have its own entry in the top-level "concepts" array."

I'm confused. Does this mean only one concept slug should be in the prerequisites array? Maybe I'm confusing concept (general) with the actual Concept exercise?

"practice": [
      {
        "slug": "hello-world",
        "name": "Hello World",
        "uuid": "f77dc7e3-35a8-4300-a7c8-2c1765e9644d",
        "practices": ["strings"],
        "prerequisites": ["lasagna"],
        "difficulty": 1
      },
      {
        "slug": "two-fer",
        "name": "Two Fer",
        "uuid": "74515d45-565b-4be2-96c4-77e58efa9257",
        "practices": ["conditionals", "strings"],
        "prerequisites": ["squeaky-clean"],
        "difficulty": 1
      },

[mirkoperillo]

I'm confused. Does this mean only one concept slug should be in the prerequisites array?

No, a practice exercise could have more than one Concept prerequisite. This is the example in the documentation

{
  "exercises": {
    "practice": [
      {
        "uuid": "8ba15933-29a2-49b1-a9ce-70474bad3007",
        "slug": "leap",
        "name": "Leap",
        "practices": ["if-statements", "numbers", "operator-precedence"],
        "prerequisites": ["if-statements", "numbers"],
        "difficulty": 1
      }
    ]
  }
}

There are 2 concepts as prerequisites of the practice exercise. I hope to understand right your doubts

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