Kindergarten

typescript/kindergarten-garden/.exercism/config.json

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+{
+  "authors": [
+    "fredrb"
+  ],
+  "contributors": [
+    "CRivasGomez",
+    "masters3d",
+    "SleeplessByte"
+  ],
+  "files": {
+    "solution": [
+      "kindergarten-garden.ts"
+    ],
+    "test": [
+      "kindergarten-garden.test.ts"
+    ],
+    "example": [
+      ".meta/proof.ci.ts"
+    ]
+  },
+  "blurb": "Given a diagram, determine which plants each child in the kindergarten class is responsible for.",
+  "custom": {
+    "version.tests.compatibility": "jest-29",
+    "flag.tests.task-per-describe": false,
+    "flag.tests.may-run-long": false,
+    "flag.tests.includes-optional": false,
+    "flag.tests.jest": true,
+    "flag.tests.tstyche": false
+  },
+  "source": "Exercise by the JumpstartLab team for students at The Turing School of Software and Design.",
+  "source_url": "https://turing.edu"
+}

typescript/kindergarten-garden/.exercism/metadata.json

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+{"track":"typescript","exercise":"kindergarten-garden","id":"595fdf036ca447ebab34754a2ed97602","url":"https://exercism.org/tracks/typescript/exercises/kindergarten-garden","handle":"briemens","is_requester":true,"auto_approve":false}

typescript/kindergarten-garden/.vscode/extensions.json

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+{
+  "recommendations": [
+    "arcanis.vscode-zipfs",
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode"
+  ]
+}

typescript/kindergarten-garden/.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+  "cSpell.words": ["exercism"],
+  "search.exclude": {
+    "**/.yarn": true,
+    "**/.pnp.*": true
+  }
+}

typescript/kindergarten-garden/.yarnrc.yml

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+compressionLevel: mixed
+
+enableGlobalCache: true

typescript/kindergarten-garden/HELP.md

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+# Help
+
+## Running the tests
+
+Before trying to execute the tests, ensure the assignment folder is set-up correctly by following the installation steps, namely `corepack yarn install` and the Editor SDK setup.
+
+Execute the tests with:
+
+```bash
+$ corepack yarn test
+```
+
+## Skipped tests
+
+In the test suites all tests but the first have been skipped.
+
+Once you get a test passing, you can enable the next one by changing `xit` to `it`.
+Additionally tests may be grouped using `xdescribe`.
+Enable the group by changing that to `describe`.
+Finally, some exercises may have optional tests `it.skip`.
+Remove `.skip` to execute the optional test.
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit kindergarten-garden.ts` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [TypeScript track's documentation](https://exercism.org/docs/tracks/typescript)
+- The [TypeScript track's programming category on the forum](https://forum.exercism.org/c/programming/typescript)
+- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+To get help if you're having trouble, you can use one of the following resources:
+
+- [TypeScript QuickStart](https://www.typescriptlang.org/docs/handbook/release-notes/overview.html)
+- [ECMAScript 2015 Language Specification](https://www.ecma-international.org/wp-content/uploads/ECMA-262_6th_edition_june_2015.pdf) (pdf)
+- [Mozilla JavaScript Reference](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference)
+- [/r/typescript](https://www.reddit.com/r/typescript) is the TypeScript subreddit.
+- [StackOverflow](https://stackoverflow.com/questions/tagged/typescript) can be used to search for your problem and see if it has been answered already. You can also ask and answer questions.

typescript/kindergarten-garden/README.md

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+# Kindergarten Garden
+
+Welcome to Kindergarten Garden on Exercism's TypeScript Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Introduction
+
+The kindergarten class is learning about growing plants.
+The teacher thought it would be a good idea to give the class seeds to plant and grow in the dirt.
+To this end, the children have put little cups along the window sills and planted one type of plant in each cup.
+The children got to pick their favorites from four available types of seeds: grass, clover, radishes, and violets.
+
+## Instructions
+
+Your task is to, given a diagram, determine which plants each child in the kindergarten class is responsible for.
+
+There are 12 children in the class:
+
+- Alice, Bob, Charlie, David, Eve, Fred, Ginny, Harriet, Ileana, Joseph, Kincaid, and Larry.
+
+Four different types of seeds are planted:
+
+| Plant  | Diagram encoding |
+| ------ | ---------------- |
+| Grass  | G                |
+| Clover | C                |
+| Radish | R                |
+| Violet | V                |
+
+Each child gets four cups, two on each row:
+
+```text
+[window][window][window]
+........................ # each dot represents a cup
+........................
+```
+
+Their teacher assigns cups to the children alphabetically by their names, which means that Alice comes first and Larry comes last.
+
+Here is an example diagram representing Alice's plants:
+
+```text
+[window][window][window]
+VR......................
+RG......................
+```
+
+In the first row, nearest the windows, she has a violet and a radish.
+In the second row she has a radish and some grass.
+
+Your program will be given the plants from left-to-right starting with the row nearest the windows.
+From this, it should be able to determine which plants belong to each student.
+
+For example, if it's told that the garden looks like so:
+
+```text
+[window][window][window]
+VRCGVVRVCGGCCGVRGCVCGCGV
+VRCCCGCRRGVCGCRVVCVGCGCV
+```
+
+Then if asked for Alice's plants, it should provide:
+
+- Violets, radishes, violets, radishes
+
+While asking for Bob's plants would yield:
+
+- Clover, grass, clover, clover
+
+## Source
+
+### Created by
+
+- @fredrb
+
+### Contributed to by
+
+- @CRivasGomez
+- @masters3d
+- @SleeplessByte
+
+### Based on
+
+Exercise by the JumpstartLab team for students at The Turing School of Software and Design. - https://turing.edu

typescript/kindergarten-garden/babel.config.cjs

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+module.exports = {
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
+  presets: [[require('@exercism/babel-preset-typescript'), { corejs: '3.38' }]],
+  plugins: [],
+}

typescript/kindergarten-garden/eslint.config.mjs

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+// @ts-check
+
+import tsEslint from 'typescript-eslint'
+import config from '@exercism/eslint-config-typescript'
+import maintainersConfig from '@exercism/eslint-config-typescript/maintainers.mjs'
+
+export default [
+  ...tsEslint.config(...config, {
+    files: ['.meta/proof.ci.ts', '.meta/exemplar.ts', '*.test.ts'],
+    extends: maintainersConfig,
+  }),
+  {
+    ignores: [
+      // # Protected or generated
+      '.git/**/*',
+      '.vscode/**/*',
+
+      //# When using npm
+      'node_modules/**/*',
+
+      // # Configuration files
+      'babel.config.cjs',
+      'jest.config.cjs',
+    ],
+  },
+]

typescript/kindergarten-garden/jest.config.cjs

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+module.exports = {
+  verbose: true,
+  projects: ['<rootDir>'],
+  testMatch: [
+    '**/__tests__/**/*.[jt]s?(x)',
+    '**/test/**/*.[jt]s?(x)',
+    '**/?(*.)+(spec|test).[jt]s?(x)',
+  ],
+  testPathIgnorePatterns: [
+    '/(?:production_)?node_modules/',
+    '.d.ts$',
+    '<rootDir>/test/fixtures',
+    '<rootDir>/test/helpers',
+    '__mocks__',
+  ],
+  transform: {
+    '^.+\\.[jt]sx?$': 'babel-jest',
+  },
+  moduleNameMapper: {
+    '^(\\.\\/.+)\\.js$': '$1',
+  },
+}

typescript/kindergarten-garden/kindergarten-garden.test.ts

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+import { describe, expect, it } from '@jest/globals'
+import { Garden } from './kindergarten-garden.ts'
+
+describe('partial Garden', () => {
+  it('garden with single student', () => {
+    expect(new Garden('RC\nGG').plants('Alice')).toEqual([
+      'radishes',
+      'clover',
+      'grass',
+      'grass',
+    ])
+  })
+
+  it('different garden with single student', () => {
+    expect(new Garden('VC\nRC').plants('Alice')).toEqual([
+      'violets',
+      'clover',
+      'radishes',
+      'clover',
+    ])
+  })
+
+  it('garden with two students', () => {
+    expect(new Garden('VVCG\nVVRC').plants('Bob')).toEqual([
+      'clover',
+      'grass',
+      'radishes',
+      'clover',
+    ])
+  })
+
+  describe('multiple students for the same garden with three students', () => {
+    it("second student's garden", () => {
+      expect(new Garden('VVCCGG\nVVCCGG').plants('Bob')).toEqual([
+        'clover',
+        'clover',
+        'clover',
+        'clover',
+      ])
+    })
+
+    it("third student's garden", () => {
+      expect(new Garden('VVCCGG\nVVCCGG').plants('Charlie')).toEqual([
+        'grass',
+        'grass',
+        'grass',
+        'grass',
+      ])
+    })
+  })
+})
+
+describe('full garden', () => {
+  const diagram = 'VRCGVVRVCGGCCGVRGCVCGCGV\nVRCCCGCRRGVCGCRVVCVGCGCV'
+  const garden = new Garden(diagram)
+
+  it("for Alice, first student's garden", () => {
+    expect(garden.plants('Alice')).toEqual([
+      'violets',
+      'radishes',
+      'violets',
+      'radishes',
+    ])
+  })
+
+  it("for Bob, second student's garden", () => {
+    expect(garden.plants('Bob')).toEqual([
+      'clover',
+      'grass',
+      'clover',
+      'clover',
+    ])
+  })
+
+  it('for Charlie', () => {
+    expect(garden.plants('Charlie')).toEqual([
+      'violets',
+      'violets',
+      'clover',
+      'grass',
+    ])
+  })
+
+  it('for David', () => {
+    expect(garden.plants('David')).toEqual([
+      'radishes',
+      'violets',
+      'clover',
+      'radishes',
+    ])
+  })
+
+  it('for Eve', () => {
+    expect(garden.plants('Eve')).toEqual([
+      'clover',
+      'grass',
+      'radishes',
+      'grass',
+    ])
+  })
+
+  it('for Fred', () => {
+    expect(garden.plants('Fred')).toEqual([
+      'grass',
+      'clover',
+      'violets',
+      'clover',
+    ])
+  })
+
+  it('for Ginny', () => {
+    expect(garden.plants('Ginny')).toEqual([
+      'clover',
+      'grass',
+      'grass',
+      'clover',
+    ])
+  })
+
+  it('for Harriet', () => {
+    expect(garden.plants('Harriet')).toEqual([
+      'violets',
+      'radishes',
+      'radishes',
+      'violets',
+    ])
+  })
+
+  it('for Ileana', () => {
+    expect(garden.plants('Ileana')).toEqual([
+      'grass',
+      'clover',
+      'violets',
+      'clover',
+    ])
+  })
+
+  it('for Joseph', () => {
+    expect(garden.plants('Joseph')).toEqual([
+      'violets',
+      'clover',
+      'violets',
+      'grass',
+    ])
+  })
+
+  it("for Kincaid, second to last student's garden", () => {
+    expect(garden.plants('Kincaid')).toEqual([
+      'grass',
+      'clover',
+      'clover',
+      'grass',
+    ])
+  })
+
+  it("for Larry, last student's garden", () => {
+    expect(garden.plants('Larry')).toEqual([
+      'grass',
+      'violets',
+      'clover',
+      'violets',
+    ])
+  })
+})
+
+describe('disordered class', () => {
+  const diagram = 'VCRRGVRG\nRVGCCGCV'
+  const students = ['Samantha', 'Patricia', 'Xander', 'Roger']
+  const garden = new Garden(diagram, students)
+
+  it('for Patricia', () => {
+    expect(garden.plants('Patricia')).toEqual([
+      'violets',
+      'clover',
+      'radishes',
+      'violets',
+    ])
+  })
+
+  it('for Roger', () => {
+    expect(garden.plants('Roger')).toEqual([
+      'radishes',
+      'radishes',
+      'grass',
+      'clover',
+    ])
+  })
+
+  it('for Samantha', () => {
+    expect(garden.plants('Samantha')).toEqual([
+      'grass',
+      'violets',
+      'clover',
+      'grass',
+    ])
+  })
+
+  it('for Xander', () => {
+    expect(garden.plants('Xander')).toEqual([
+      'radishes',
+      'grass',
+      'clover',
+      'violets',
+    ])
+  })
+})
+
+describe('Two gardens, different students', () => {
+  const diagram = 'VCRRGVRG\nRVGCCGCV'
+  const garden1 = new Garden(diagram, ['Alice', 'Bob', 'Charlie', 'Dan'])
+  const garden2 = new Garden(diagram, ['Bob', 'Charlie', 'Dan', 'Erin'])
+
+  it('Bob and Charlie for each garden', () => {
+    expect(garden1.plants('Bob')).toEqual([
+      'radishes',
+      'radishes',
+      'grass',
+      'clover',
+    ])
+    expect(garden2.plants('Bob')).toEqual([
+      'violets',
+      'clover',
+      'radishes',
+      'violets',
+    ])
+    expect(garden1.plants('Charlie')).toEqual([
+      'grass',
+      'violets',
+      'clover',
+      'grass',
+    ])
+    expect(garden2.plants('Charlie')).toEqual([
+      'radishes',
+      'radishes',
+      'grass',
+      'clover',
+    ])
+  })
+})

typescript/kindergarten-garden/kindergarten-garden.ts

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+const DEFAULT_STUDENTS = [ 'Alice', 'Bob', 'Charlie', 'David', 'Eve', 'Fred', 'Ginny', 'Harriet', 'Ileana', 'Joseph', 'Kincaid', 'Larry' ]
+const PLANT_CODES = { G: 'grass', V: 'violets', R: 'radishes', C: 'clover', } as const
+
+type Student = string
+type PlantCode = keyof (typeof PLANT_CODES)
+type Plant = (typeof PLANT_CODES)[PlantCode]
+type Spot = Plant | null
+type SpotsPerStudent = Record<Student, [Spot, Spot, Spot, Spot]>
+
+const isPlantCode = (code: string): code is PlantCode => PLANT_CODES.hasOwnProperty(code)
+
+export class Garden {
+  private _state: SpotsPerStudent = {}
+
+  static parseDiagram(diagram: string, students: Student[] = DEFAULT_STUDENTS): SpotsPerStudent { 
+    const result: SpotsPerStudent = {}
+    const rows = diagram.split('\n').map(row => row.split('').filter(isPlantCode).map(code => PLANT_CODES[code]))
+
+    if (rows.length !== 2)  throw new Error('Expected 2 rows')
+    if (rows[0].length !== rows[1].length) throw new Error('Rows are not of equal length')
+
+    for (let i = 0; i < rows[0].length; i+=2) {
+      result[students[Math.floor(i/2)]] = [rows[0][i], rows[0][i+1], rows[1][i], rows[1][i+1]]
+    }
+    return result
+  }
+
+  constructor(_diagram: string, _students: Student[] = DEFAULT_STUDENTS) {
+    this._state = Garden.parseDiagram(_diagram, [..._students].sort())
+  }
+
+  public plants(student: Student): Plant[] {
+   return (this._state[student] || []).filter(spot => spot !== null)
+  }
+}

typescript/kindergarten-garden/package.json

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+{
+  "name": "@exercism/typescript-kindergarten-garden",
+  "version": "1.0.0",
+  "description": "Exercism exercises in Typescript.",
+  "private": true,
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/exercism/typescript"
+  },
+  "type": "module",
+  "engines": {
+    "node": "^18.16.0 || >=20.0.0"
+  },
+  "devDependencies": {
+    "@exercism/babel-preset-typescript": "^0.6.0",
+    "@exercism/eslint-config-typescript": "^0.8.0",
+    "@jest/globals": "^29.7.0",
+    "@types/node": "~22.7.6",
+    "babel-jest": "^29.7.0",
+    "core-js": "~3.38.1",
+    "eslint": "^9.12.0",
+    "expect": "^29.7.0",
+    "jest": "^29.7.0",
+    "prettier": "^3.3.3",
+    "tstyche": "^2.1.1",
+    "typescript": "~5.6.3",
+    "typescript-eslint": "^8.10.0"
+  },
+  "scripts": {
+    "test": "corepack yarn node test-runner.mjs",
+    "test:types": "corepack yarn tstyche",
+    "test:implementation": "corepack yarn jest --no-cache --passWithNoTests",
+    "lint": "corepack yarn lint:types && corepack yarn lint:ci",
+    "lint:types": "corepack yarn tsc --noEmit -p .",
+    "lint:ci": "corepack yarn eslint . --ext .tsx,.ts"
+  },
+  "packageManager": "yarn@4.5.1"
+}

typescript/kindergarten-garden/test-runner.mjs

@@ -0,0 +1,111 @@
+#!/usr/bin/env node
+
+/**
+ * 👋🏽 Hello there reader,
+ *
+ * It looks like you are working on this solution using the Exercism CLI and
+ * not the online editor. That's great! The file you are looking at executes
+ * the various steps the online test-runner also takes.
+ *
+ * @see https://github.com/exercism/typescript-test-runner
+ *
+ * TypeScript track exercises generally consist of at least two out of three
+ * types of tests to run.
+ *
+ * 1. tsc, the TypeScript compiler. This tests if the TypeScript code is valid
+ * 2. tstyche, static analysis tests to see if the types used are expected
+ * 3. jest, runtime implementation tests to see if the solution is correct
+ *
+ * If one of these three fails, this script terminates with -1, -2, or -3
+ * respectively. If it succeeds, it terminates with exit code 0.
+ *
+ * @note you need corepack (bundled with node LTS) enabled in order for this
+ *    test runner to work as expected. Follow the installation and test
+ *    instructions if you see errors about corepack or pnp.
+ */
+
+import { execSync } from 'node:child_process'
+import { existsSync, readFileSync } from 'node:fs'
+import { exit } from 'node:process'
+import { URL } from 'node:url'
+
+/**
+ * Before executing any tests, the test runner attempts to find the
+ * exercise config.json file which has metadata about which types of tests
+ * to run for this solution.
+ */
+const metaDirectory = new URL('./.meta/', import.meta.url)
+const exercismDirectory = new URL('./.exercism/', import.meta.url)
+const configDirectory = existsSync(metaDirectory)
+  ? metaDirectory
+  : existsSync(exercismDirectory)
+    ? exercismDirectory
+    : null
+
+if (configDirectory === null) {
+  throw new Error(
+    'Expected .meta or .exercism directory to exist, but I cannot find it.'
+  )
+}
+
+const configFile = new URL('./config.json', configDirectory)
+if (!existsSync(configFile)) {
+  throw new Error('Expected config.json to exist at ' + configFile.toString())
+}
+
+// Experimental: import config from './config.json' with { type: 'json' }
+/** @type {import('./config.json') } */
+const config = JSON.parse(readFileSync(configFile))
+
+const jest = !config.custom || config.custom['flag.tests.jest']
+const tstyche = config.custom?.['flag.tests.tstyche']
+console.log(
+  `[tests] tsc: ✅, tstyche: ${tstyche ? '✅' : '❌'}, jest: ${jest ? '✅' : '❌'}, `
+)
+
+/**
+ * 1. tsc: the typescript compiler
+ */
+try {
+  console.log('[tests] tsc (compile)')
+  execSync('corepack yarn lint:types', {
+    stdio: 'inherit',
+    cwd: process.cwd(),
+  })
+} catch {
+  exit(-1)
+}
+
+/**
+ * 2. tstyche: type tests
+ */
+if (tstyche) {
+  try {
+    console.log('[tests] tstyche (type tests)')
+    execSync('corepack yarn test:types', {
+      stdio: 'inherit',
+      cwd: process.cwd(),
+    })
+  } catch {
+    exit(-2)
+  }
+}
+
+/**
+ * 3. jest: implementation tests
+ */
+if (jest) {
+  try {
+    console.log('[tests] tstyche (implementation tests)')
+    execSync('corepack yarn test:implementation', {
+      stdio: 'inherit',
+      cwd: process.cwd(),
+    })
+  } catch {
+    exit(-3)
+  }
+}
+
+/**
+ * Done! 🥳
+ */

typescript/kindergarten-garden/tsconfig.json

@@ -0,0 +1,38 @@
+{
+  "display": "Configuration for Exercism TypeScript Exercises",
+  "compilerOptions": {
+    // Allows you to use the newest syntax, and have access to console.log
+    // https://www.typescriptlang.org/tsconfig#lib
+    "lib": ["ES2020", "dom"],
+    // Make sure typescript is configured to output ESM
+    // https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c#how-can-i-make-my-typescript-project-output-esm
+    "module": "Node16",
+    // Since this project is using babel, TypeScript may target something very
+    // high, and babel will make sure it runs on your local Node version.
+    // https://babeljs.io/docs/en/
+    "target": "ES2020", // ESLint doesn't support this yet: "es2022",
+
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+
+    // Because jest-resolve isn't like node resolve, the absolute path must be .ts
+    "allowImportingTsExtensions": true,
+    "noEmit": true,
+
+    // Because we'll be using babel: ensure that Babel can safely transpile
+    // files in the TypeScript project.
+    //
+    // https://babeljs.io/docs/en/babel-plugin-transform-typescript/#caveats
+    "isolatedModules": true
+  },
+  "include": [
+    "*.ts",
+    "*.tsx",
+    ".meta/*.ts",
+    ".meta/*.tsx",
+    "__typetests__/*.tst.ts"
+  ],
+  "exclude": ["node_modules"]
+}