config.json

{
  "language": "CoffeeScript",
  "slug": "coffeescript",
  "active": true,
  "status": {
    "concept_exercises": false,
    "test_runner": true,
    "representer": false,
    "analyzer": false
  },
  "blurb": "CoffeeScript is a language that compiles into JavaScript. It uses an alternative syntax to the Java-like syntax of JavaScript, and is one of many new transpiled languages used in web development.",
  "version": 3,
  "online_editor": {
    "indent_style": "space",
    "indent_size": 2,
    "highlightjs_language": "coffeescript"
  },
  "test_runner": {
    "average_run_time": 1
  },
  "files": {
    "solution": [
      "%{kebab_slug}.coffee"
    ],
    "test": [
      "%{kebab_slug}.spec.coffee"
    ],
    "example": [
      ".meta/example.coffee"
    ],
    "exemplar": [
      ".meta/exemplar.coffee"
    ]
  },
  "exercises": {
    "practice": [
      {
        "slug": "accumulate",
        "name": "Accumulate",
        "uuid": "b4670a87-1436-4e83-a641-76a6ec00fab8",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3,
        "status": "deprecated"
      },
      {
        "slug": "acronym",
        "name": "Acronym",
        "uuid": "b52fd0d7-9473-4385-8a5b-e5c5b0d199fd",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "anagram",
        "name": "Anagram",
        "uuid": "22fe2f9c-71af-4ce0-b3cb-690a93654fe6",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "topics": [
          "sorting",
          "strings",
          "text_formatting"
        ]
      },
      {
        "slug": "armstrong-numbers",
        "name": "Armstrong Numbers",
        "uuid": "931d5146-32fd-408d-8da0-752a5612c220",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "bank-account",
        "name": "Bank Account",
        "uuid": "27f36909-8005-4537-80b4-4c81a3325b5b",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3
      },
      {
        "slug": "beer-song",
        "name": "Beer Song",
        "uuid": "3256e251-89ab-4a48-91a4-b4d314b77bec",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "status": "deprecated",
        "topics": [
          "control_flow_switch",
          "loops",
          "text_formatting"
        ]
      },
      {
        "slug": "binary",
        "name": "Binary",
        "uuid": "414dcffe-029a-4558-aabe-d933cd148abf",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "status": "deprecated",
        "topics": [
          "integers",
          "math",
          "transforming"
        ]
      },
      {
        "slug": "binary-search",
        "name": "Binary Search",
        "uuid": "1fe21f0a-9751-42b5-837f-a091807d453e",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "bottle-song",
        "name": "Bottle Song",
        "uuid": "eed6de7f-c6ce-4e85-a34e-0170b790c395",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "clock",
        "name": "Clock",
        "uuid": "4b3977e2-0e32-49ac-b3df-5c1d2600c079",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3,
        "topics": [
          "integers",
          "loops",
          "text_formatting"
        ]
      },
      {
        "slug": "collatz-conjecture",
        "name": "Collatz Conjecture",
        "uuid": "ffe5a3bc-d113-4550-a215-bf0c5a0923ee",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "dnd-character",
        "name": "D&D Character",
        "uuid": "6f421414-3668-450d-a7ea-bba6d4e0d75f",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3
      },
      {
        "slug": "darts",
        "name": "Darts",
        "uuid": "2e7a7952-9db5-4aa6-9985-6561fac3853d",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "difference-of-squares",
        "name": "Difference of Squares",
        "uuid": "ae8b3303-96cf-447f-b377-0ca713c0e022",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "eliuds-eggs",
        "name": "Eliud's Eggs",
        "uuid": "74cd0909-01ff-4e7f-b104-6cbeb6d16287",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "etl",
        "name": "ETL",
        "uuid": "2a1c165e-3ee8-47a4-b19d-7e44c79458f0",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "flatten-array",
        "name": "Flatten Array",
        "uuid": "c738dc79-13ca-4a61-b25d-23fde54d588f",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "gigasecond",
        "name": "Gigasecond",
        "uuid": "1d797dbb-90e3-424c-91de-430e41a71ab1",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "grains",
        "name": "Grains",
        "uuid": "1244927f-9ff6-422e-a8bc-5e476dc46a90",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "hello-world",
        "name": "Hello World",
        "uuid": "0d1ce0cd-f7f2-4843-82ac-b0b4d995fa16",
        "practices": [],
        "prerequisites": [],
        "difficulty": 1,
        "topics": [
          "conditionals",
          "control_flow_if_statements",
          "optional_values",
          "text_formatting"
        ]
      },
      {
        "slug": "hexadecimal",
        "name": "Hexadecimal",
        "uuid": "bad8f00c-a480-4cf9-8939-2ec45f59ff42",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3,
        "status": "deprecated",
        "topics": [
          "integers",
          "math",
          "transforming"
        ]
      },
      {
        "slug": "high-scores",
        "name": "High Scores",
        "uuid": "9a0b0ca8-834c-4f66-a62d-03246d1a8121",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "isbn-verifier",
        "name": "ISBN Verifier",
        "uuid": "e33144e1-5e77-47b4-9aed-e743b7573ad8",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "isogram",
        "name": "Isogram",
        "uuid": "5b4e8590-7aed-40d3-b337-23f0c1db9d5b",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "leap",
        "name": "Leap",
        "uuid": "fed8614b-fa32-465e-8699-dbcf0cfc0798",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "linked-list",
        "name": "Linked List",
        "uuid": "34661cc2-6d88-4e36-8c3e-87744be307ef",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3,
        "topics": [
          "algorithms",
          "classes",
          "object_oriented_programming",
          "variables"
        ]
      },
      {
        "slug": "list-ops",
        "name": "List Ops",
        "uuid": "2f1a1b01-d8ae-46c7-a439-51923382d2cd",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "luhn",
        "name": "Luhn",
        "uuid": "85c6c117-0173-4a1a-ae33-86427d6512dd",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "topics": [
          "algorithms",
          "arrays",
          "integers",
          "pattern_recognition"
        ]
      },
      {
        "slug": "matrix",
        "name": "Matrix",
        "uuid": "653ae967-32d2-4789-bb43-289ad1572191",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "matching-brackets",
        "name": "Matching Brackets",
        "uuid": "f4231888-c660-46d1-b05e-0dd4e223ea28",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "micro-blog",
        "name": "Micro Blog",
        "uuid": "13eb6029-cf8b-4a2f-bc76-f18e8883fd5b",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "nucleotide-count",
        "name": "Nucleotide Count",
        "uuid": "6952588f-22fb-493e-b252-d62c404ad9ca",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "topics": [
          "filtering",
          "maps",
          "strings"
        ]
      },
      {
        "slug": "palindrome-products",
        "name": "Palindrome Products",
        "uuid": "803690cc-a7cc-4c2f-b767-4c14a399f13a",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "topics": [
          "arrays",
          "integers",
          "math"
        ]
      },
      {
        "slug": "pangram",
        "name": "Pangram",
        "uuid": "b008c134-7cf2-4836-bf5b-018a89a82a5e",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "pascals-triangle",
        "name": "Pascal's Triangle",
        "uuid": "ee80988f-f1df-4958-b164-0e7fba9d1305",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "topics": [
          "algorithms",
          "arrays",
          "integers",
          "math"
        ]
      },
      {
        "slug": "perfect-numbers",
        "name": "Perfect Numbers",
        "uuid": "6f95df06-8171-44a6-8fb3-d43951b9fae3",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "phone-number",
        "name": "Phone Number",
        "uuid": "a5e178c2-fcb8-4722-a67a-d1a5c8866f1b",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3
      },
      {
        "slug": "prime-factors",
        "name": "Prime Factors",
        "uuid": "bd85cab1-c5e1-46ac-9faf-a815510fdfcd",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "protein-translation",
        "name": "Protein Translation",
        "uuid": "f14ba160-10c8-4471-a49c-f394e4ad64eb",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "proverb",
        "name": "Proverb",
        "uuid": "cad4e3b4-4fb4-4120-a0ae-b59796fd0dc7",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "queen-attack",
        "name": "Queen Attack",
        "uuid": "563c81d1-8673-41b8-8302-15f7edb22321",
        "practices": [],
        "prerequisites": [],
        "difficulty": 1,
        "topics": [
          "algorithms",
          "arrays",
          "games",
          "logic"
        ]
      },
      {
        "slug": "raindrops",
        "name": "Raindrops",
        "uuid": "7a07c4ae-608f-48d6-8641-c7ceba849dd6",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "resistor-color",
        "name": "Resistor Color",
        "uuid": "6f128832-f1b8-4a35-85b1-61c4d487afde",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "resistor-color-duo",
        "name": "Resistor Color Duo",
        "uuid": "f8f53f73-05dd-4732-994f-77eeaea6aa41",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "robot-simulator",
        "name": "Robot Simulator",
        "uuid": "23b8d924-3493-4bbc-8e7d-7fdef5234833",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "reverse-string",
        "name": "Reverse String",
        "uuid": "1b4c8b0f-a7cc-4db1-a0ad-485dc2b320d7",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "rna-transcription",
        "name": "RNA Transcription",
        "uuid": "d47b7ced-f2e6-47fd-b796-9c21448b1c14",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "roman-numerals",
        "name": "Roman Numerals",
        "uuid": "d4b800f6-94cd-455a-abe5-cbbddd70a26f",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "rotational-cipher",
        "name": "Rotational Cipher",
        "uuid": "2861f6ab-d62c-4798-b99a-efe84d9a32bf",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "scrabble-score",
        "name": "Scrabble Score",
        "uuid": "1630dd6a-dbf8-4fd2-bcb7-1989bea52347",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "series",
        "name": "Series",
        "uuid": "65fbb0f3-b69e-4273-9e70-bf083896d57a",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "space-age",
        "name": "Space Age",
        "uuid": "fb46a981-fc87-4e67-91be-3d9d2a487380",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "square-root",
        "name": "Square Root",
        "uuid": "5407e219-9884-4b36-9b63-fac188ad6853",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "strain",
        "name": "Strain",
        "uuid": "1b205a7a-7602-4e96-941c-3e56b6aecb3a",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "sublist",
        "name": "Sublist",
        "uuid": "860ca217-9d4f-4102-9b98-1c524a477bbf",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "sum-of-multiples",
        "name": "Sum of Multiples",
        "uuid": "2e6dcbe2-bef0-4f37-b048-7701fe116c4c",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "triangle",
        "name": "Triangle",
        "uuid": "42292f42-ccfe-4103-a6f3-a057bca32c49",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2,
        "topics": [
          "arrays",
          "equality"
        ]
      },
      {
        "slug": "trinary",
        "name": "Trinary",
        "uuid": "3b225ecc-1321-476d-8aa7-db352f952c61",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3,
        "status": "deprecated",
        "topics": [
          "integers",
          "math",
          "transforming"
        ]
      },
      {
        "slug": "two-fer",
        "name": "Two Fer",
        "uuid": "6280dc12-8d67-4cc1-95f0-b7f863cbf444",
        "practices": [],
        "prerequisites": [],
        "difficulty": 1
      },
      {
        "slug": "yacht",
        "name": "Yacht",
        "uuid": "e032aa32-6dd1-438b-9e74-d6d957d043e9",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "word-count",
        "name": "Word Count",
        "uuid": "e80080ca-04a9-40b5-affe-88f1d617dc97",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3,
        "topics": [
          "maps",
          "strings",
          "text_formatting",
          "transforming",
          "variables"
        ]
      },
      {
        "slug": "atbash-cipher",
        "name": "Atbash Cipher",
        "uuid": "a38d0644-42b5-4f01-b110-b723be1fa8a1",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5,
        "topics": [
          "arrays",
          "cryptography",
          "strings",
          "text_formatting"
        ]
      },
      {
        "slug": "binary-search-tree",
        "name": "Binary Search Tree",
        "uuid": "bf14de70-e231-48a1-b208-2d54d3398171",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5,
        "topics": [
          "algorithms",
          "arrays",
          "integers",
          "trees"
        ]
      },
      {
        "slug": "bob",
        "name": "Bob",
        "uuid": "a8e713a1-e8b9-48b2-b20d-7121b0ecf6c0",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5,
        "topics": [
          "conditionals",
          "control_flow_switch",
          "text_formatting"
        ]
      },
      {
        "slug": "custom-set",
        "name": "Custom Set",
        "uuid": "560b738f-c20d-43ac-9bc5-4821628adc00",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "kindergarten-garden",
        "name": "Kindergarten Garden",
        "uuid": "eedbb810-6f4d-4feb-8da4-d5e26db6d67c",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "largest-series-product",
        "name": "Largest Series Product",
        "uuid": "9ae397e6-da06-433a-b4dc-118c01b73a8a",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "nth-prime",
        "name": "Nth Prime",
        "uuid": "df9e580c-3a05-4d6c-b0d0-375df3af4d6c",
        "practices": [],
        "prerequisites": [],
        "difficulty": 4,
        "topics": [
          "arrays",
          "filter",
          "loops",
          "map",
          "math"
        ]
      },
      {
        "slug": "pig-latin",
        "name": "Pig Latin",
        "uuid": "9594bb36-5c7a-4e26-b34d-ad29f6013a94",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "run-length-encoding",
        "name": "Run-Length Encoding",
        "uuid": "b496f1b1-c04e-4d13-95bf-507bf3e616a7",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "spiral-matrix",
        "name": "Spiral Matrix",
        "uuid": "2bf4fbd5-cc07-4b7e-b733-d787981bc587",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "wordy",
        "name": "Wordy",
        "uuid": "86826aa0-f4b0-444c-a5c9-287a6590027e",
        "practices": [],
        "prerequisites": [],
        "difficulty": 4,
        "topics": [
          "integers",
          "pattern_recognition",
          "regular_expressions",
          "strings"
        ]
      },
      {
        "slug": "allergies",
        "name": "Allergies",
        "uuid": "fd8a5055-deb0-4a06-a9d5-e6d2f7e2be23",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "circular-buffer",
        "name": "Circular Buffer",
        "uuid": "85672148-01f2-4c88-b859-5d9ecc5c1ada",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3
      },
      {
        "slug": "sieve",
        "name": "Sieve",
        "uuid": "254aeab6-31e2-482b-9eb1-cca454e13705",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3
      },
      {
        "slug": "secret-handshake",
        "name": "Secret Handshake",
        "uuid": "b66ba570-f586-4bf1-9cad-c2e7fdd24f65",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "hamming",
        "name": "Hamming",
        "uuid": "1bba0e52-fc79-40bc-9f5e-304ff5d86dc5",
        "practices": [],
        "prerequisites": [],
        "difficulty": 2
      },
      {
        "slug": "grade-school",
        "name": "Grade School",
        "uuid": "98f925a2-bc1c-4dc1-b2f4-d06941114250",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "minesweeper",
        "name": "Minesweeper",
        "uuid": "fe341c5e-0292-455f-93be-1ffb8f0b4b3b",
        "practices": [],
        "prerequisites": [],
        "difficulty": 8
      },
      {
        "slug": "simple-linked-list",
        "name": "Simple Linked List",
        "uuid": "1c96f455-f1d5-4aa1-950c-6e60fc2b09ae",
        "practices": [],
        "prerequisites": [],
        "difficulty": 8
      },
      {
        "slug": "two-bucket",
        "name": "Two Bucket",
        "uuid": "fa32f8ae-1032-4981-9fa6-5895a549f6a1",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "all-your-base",
        "name": "All Your Base",
        "uuid": "b3bfbbd9-a0f4-4cbf-848b-f889bb0241a0",
        "practices": [],
        "prerequisites": [],
        "difficulty": 3
      },
      {
        "slug": "meetup",
        "name": "Meetup",
        "uuid": "398c1590-2e8f-445e-83cb-2b762be63b2b",
        "practices": [],
        "prerequisites": [],
        "difficulty": 5
      },
      {
        "slug": "knapsack",
        "name": "Knapsack",
        "uuid": "a385b861-22a5-4319-9fc0-c0228640ce26",
        "practices": [],
        "prerequisites": [],
        "difficulty": 6
      }
    ]
  },
  "key_features": [
    {
      "title": "Transpiles to JavaScript",
      "content": "Same language, better syntax. Use CoffeeScript anywhere JavaScript is used.",
      "icon": "widely-used"
    },
    {
      "title": "Human friendly syntax",
      "content": "Inspired by Ruby and Python, CoffeeScript has a simple, readable, and easy-to-use syntax.",
      "icon": "easy"
    },
    {
      "title": "Dynamically typed",
      "content": "Easy to write, easy to read.",
      "icon": "dynamically-typed"
    },
    {
      "title": "Large package ecosystem",
      "content": "CoffeeScript can use any of the 1.3 million+ JavaScript libraries.",
      "icon": "tooling"
    },
    {
      "title": "Developer happiness",
      "content": "Combine JavaScript's power with your happiness",
      "icon": "fun"
    },
    {
      "title": "Multi-paradigm",
      "content": "Use which ever paradigm you want: functional, object-oriented or imperative programming.",
      "icon": "multi-paradigm"
    }
  ],
  "tags": [
    "execution_mode/interpreted",
    "paradigm/declarative",
    "paradigm/functional",
    "paradigm/imperative",
    "paradigm/object_oriented",
    "platform/android",
    "platform/ios",
    "platform/linux",
    "platform/mac",
    "platform/web",
    "platform/windows",
    "typing/dynamic",
    "typing/weak",
    "used_for/backends",
    "used_for/cross_platform_development",
    "used_for/frontends",
    "used_for/games",
    "used_for/guis",
    "used_for/mobile",
    "used_for/scripts",
    "used_for/web_development"
  ]
}