Add line-up

BNAndras · BNAndras · commit b67ca52dac94 · 2026-01-26T12:16:23.000-08:00
diff --git a/config.json b/config.json
@@ -121,6 +121,18 @@
           "logic"
         ]
       },
+      {
+        "slug": "line-up",
+        "name": "Line Up",
+        "uuid": "614dbbe5-56dc-47ea-86e6-ee64497f2cac",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "numbers",
+          "strings"
+        ]
+      },
       {
         "slug": "rna-transcription",
         "name": "RNA Transcription",
diff --git a/exercises/practice/line-up/.docs/instructions.md b/exercises/practice/line-up/.docs/instructions.md
@@ -0,0 +1,19 @@
+# Instructions
+
+Given a name and a number, your task is to produce a sentence using that name and that number as an [ordinal numeral][ordinal-numeral].
+Yaʻqūb expects to use numbers from 1 up to 999.
+
+Rules:
+
+- Numbers ending in 1 (unless ending in 11) → `"st"`
+- Numbers ending in 2 (unless ending in 12) → `"nd"`
+- Numbers ending in 3 (unless ending in 13) → `"rd"`
+- All other numbers → `"th"`
+
+Examples:
+
+- `"Mary", 1` → `"Mary, you are the 1st customer we serve today. Thank you!"`
+- `"John", 12` → `"John, you are the 12th customer we serve today. Thank you!"`
+- `"Dahir", 162` → `"Dahir, you are the 162nd customer we serve today. Thank you!"`
+
+[ordinal-numeral]: https://en.wikipedia.org/wiki/Ordinal_numeral
diff --git a/exercises/practice/line-up/.docs/introduction.md b/exercises/practice/line-up/.docs/introduction.md
@@ -0,0 +1,7 @@
+# Introduction
+
+Your friend Yaʻqūb works the counter at a deli in town, slicing, weighing, and wrapping orders for a line of hungry customers that gets longer every day.
+Waiting customers are starting to lose track of who is next, so he wants numbered tickets they can use to track the order in which they arrive.
+
+To make the customers feel special, he does not want the ticket to have only a number on it.
+They shall get a proper English sentence with their name and number on it.
diff --git a/exercises/practice/line-up/.meta/config.json b/exercises/practice/line-up/.meta/config.json
@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "BNAndras"
+  ],
+  "files": {
+    "solution": [
+      "line-up.ts"
+    ],
+    "test": [
+      "line-up.test.ts"
+    ],
+    "example": [
+      ".meta/proof.ci.ts"
+    ]
+  },
+  "blurb": "Help lining up customers at Yaʻqūb's Deli.",
+  "source": "mk-mxp, based on previous work from Exercism contributors codedge and neenjaw",
+  "source_url": "https://forum.exercism.org/t/new-exercise-ordinal-numbers/19147"
+}
diff --git a/exercises/practice/line-up/.meta/proof.ci.ts b/exercises/practice/line-up/.meta/proof.ci.ts
@@ -0,0 +1,25 @@
+const getSuffix = (number: number): string => {
+  const lastTwoDigits = number % 100
+  const lastOneDigit = number % 10
+
+  if (lastTwoDigits >= 11 && lastTwoDigits <= 13) {
+    return 'th'
+  }
+
+  if (lastOneDigit === 1) {
+    return 'st'
+  }
+
+  if (lastOneDigit === 2) {
+    return 'nd'
+  }
+
+  if (lastOneDigit === 3) {
+    return 'rd'
+  }
+
+  return 'th'
+}
+
+export const format = (name: string, number: number): string =>
+  `${name}, you are the ${number}${getSuffix(number)} customer we serve today. Thank you!`
diff --git a/exercises/practice/line-up/.meta/tests.toml b/exercises/practice/line-up/.meta/tests.toml
@@ -0,0 +1,67 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[7760d1b8-4864-4db4-953b-0fa7c047dbc0]
+description = "format smallest non-exceptional ordinal numeral 4"
+
+[e8b7c715-6baa-4f7b-8fb3-2fa48044ab7a]
+description = "format greatest single digit non-exceptional ordinal numeral 9"
+
+[f370aae9-7ae7-4247-90ce-e8ff8c6934df]
+description = "format non-exceptional ordinal numeral 5"
+
+[37f10dea-42a2-49de-bb92-0b690b677908]
+description = "format non-exceptional ordinal numeral 6"
+
+[d8dfb9a2-3a1f-4fee-9dae-01af3600054e]
+description = "format non-exceptional ordinal numeral 7"
+
+[505ec372-1803-42b1-9377-6934890fd055]
+description = "format non-exceptional ordinal numeral 8"
+
+[8267072d-be1f-4f70-b34a-76b7557a47b9]
+description = "format exceptional ordinal numeral 1"
+
+[4d8753cb-0364-4b29-84b8-4374a4fa2e3f]
+description = "format exceptional ordinal numeral 2"
+
+[8d44c223-3a7e-4f48-a0ca-78e67bf98aa7]
+description = "format exceptional ordinal numeral 3"
+
+[6c4f6c88-b306-4f40-bc78-97cdd583c21a]
+description = "format smallest two digit non-exceptional ordinal numeral 10"
+
+[e257a43f-d2b1-457a-97df-25f0923fc62a]
+description = "format non-exceptional ordinal numeral 11"
+
+[bb1db695-4d64-457f-81b8-4f5a2107e3f4]
+description = "format non-exceptional ordinal numeral 12"
+
+[60a3187c-9403-4835-97de-4f10ebfd63e2]
+description = "format non-exceptional ordinal numeral 13"
+
+[2bdcebc5-c029-4874-b6cc-e9bec80d603a]
+description = "format exceptional ordinal numeral 21"
+
+[74ee2317-0295-49d2-baf0-d56bcefa14e3]
+description = "format exceptional ordinal numeral 62"
+
+[b37c332d-7f68-40e3-8503-e43cbd67a0c4]
+description = "format exceptional ordinal numeral 100"
+
+[0375f250-ce92-4195-9555-00e28ccc4d99]
+description = "format exceptional ordinal numeral 101"
+
+[0d8a4974-9a8a-45a4-aca7-a9fb473c9836]
+description = "format non-exceptional ordinal numeral 112"
+
+[06b62efe-199e-4ce7-970d-4bf73945713f]
+description = "format exceptional ordinal numeral 123"
diff --git a/exercises/practice/line-up/.vscode/extensions.json b/exercises/practice/line-up/.vscode/extensions.json
@@ -0,0 +1,7 @@
+{
+  "recommendations": [
+    "arcanis.vscode-zipfs",
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode"
+  ]
+}
diff --git a/exercises/practice/line-up/.vscode/settings.json b/exercises/practice/line-up/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+  "cSpell.words": ["exercism"],
+  "search.exclude": {
+    "**/.yarn": true,
+    "**/.pnp.*": true
+  }
+}
diff --git a/exercises/practice/line-up/.yarnrc.yml b/exercises/practice/line-up/.yarnrc.yml
@@ -0,0 +1,3 @@
+compressionLevel: mixed
+
+enableGlobalCache: true
diff --git a/exercises/practice/line-up/babel.config.cjs b/exercises/practice/line-up/babel.config.cjs
@@ -0,0 +1,5 @@
+module.exports = {
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
+  presets: [[require('@exercism/babel-preset-typescript'), { corejs: '3.38' }]],
+  plugins: [],
+}
diff --git a/exercises/practice/line-up/eslint.config.mjs b/exercises/practice/line-up/eslint.config.mjs
@@ -0,0 +1,26 @@
+// @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',
+    ],
+  },
+]
diff --git a/exercises/practice/line-up/jest.config.cjs b/exercises/practice/line-up/jest.config.cjs
@@ -0,0 +1,22 @@
+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',
+  },
+}
diff --git a/exercises/practice/line-up/line-up.test.ts b/exercises/practice/line-up/line-up.test.ts
@@ -0,0 +1,118 @@
+import { describe, it, expect, xit } from '@jest/globals'
+import { format } from './line-up.ts'
+
+describe('Line Up', () => {
+  it('format smallest non-exceptional ordinal numeral 4', () => {
+    expect(format('Gianna', 4)).toBe(
+      'Gianna, you are the 4th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format greatest single digit non-exceptional ordinal numeral 9', () => {
+    expect(format('Maarten', 9)).toBe(
+      'Maarten, you are the 9th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format non-exceptional ordinal numeral 5', () => {
+    expect(format('Petronila', 5)).toBe(
+      'Petronila, you are the 5th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format non-exceptional ordinal numeral 6', () => {
+    expect(format('Attakullakulla', 6)).toBe(
+      'Attakullakulla, you are the 6th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format non-exceptional ordinal numeral 7', () => {
+    expect(format('Kate', 7)).toBe(
+      'Kate, you are the 7th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format non-exceptional ordinal numeral 8', () => {
+    expect(format('Maximiliano', 8)).toBe(
+      'Maximiliano, you are the 8th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 1', () => {
+    expect(format('Mary', 1)).toBe(
+      'Mary, you are the 1st customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 2', () => {
+    expect(format('Haruto', 2)).toBe(
+      'Haruto, you are the 2nd customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 3', () => {
+    expect(format('Henriette', 3)).toBe(
+      'Henriette, you are the 3rd customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format smallest two digit non-exceptional ordinal numeral 10', () => {
+    expect(format('Alvarez', 10)).toBe(
+      'Alvarez, you are the 10th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format non-exceptional ordinal numeral 11', () => {
+    expect(format('Jacqueline', 11)).toBe(
+      'Jacqueline, you are the 11th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format non-exceptional ordinal numeral 12', () => {
+    expect(format('Juan', 12)).toBe(
+      'Juan, you are the 12th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format non-exceptional ordinal numeral 13', () => {
+    expect(format('Patricia', 13)).toBe(
+      'Patricia, you are the 13th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 21', () => {
+    expect(format('Washi', 21)).toBe(
+      'Washi, you are the 21st customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 62', () => {
+    expect(format('Nayra', 62)).toBe(
+      'Nayra, you are the 62nd customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 100', () => {
+    expect(format('John', 100)).toBe(
+      'John, you are the 100th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 101', () => {
+    expect(format('Zeinab', 101)).toBe(
+      'Zeinab, you are the 101st customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 112', () => {
+    expect(format('Knud', 112)).toBe(
+      'Knud, you are the 112th customer we serve today. Thank you!'
+    )
+  })
+
+  xit('format exceptional ordinal numeral 123', () => {
+    expect(format('Yma', 123)).toBe(
+      'Yma, you are the 123rd customer we serve today. Thank you!'
+    )
+  })
+})
diff --git a/exercises/practice/line-up/line-up.ts b/exercises/practice/line-up/line-up.ts
@@ -0,0 +1,3 @@
+export function format(name: unknown, number: unknown): unknown {
+  throw new Error('Remove this line and implement the function')
+}
diff --git a/exercises/practice/line-up/package.json b/exercises/practice/line-up/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "@exercism/typescript-line-up",
+  "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"
+}
diff --git a/exercises/practice/line-up/test-runner.mjs b/exercises/practice/line-up/test-runner.mjs
diff --git a/exercises/practice/line-up/tsconfig.json b/exercises/practice/line-up/tsconfig.json
diff --git a/exercises/practice/line-up/yarn.lock b/exercises/practice/line-up/yarn.lock

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`@@ -0,0 +1,3 @@`
	`1`	`+compressionLevel: mixed`
	`2`	`+`
	`3`	`+enableGlobalCache: true`