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Leap

master
Julio Biason 2 years ago
parent
commit
4922854f24
  1. 12
      typescript/leap/.eslintignore
  2. 23
      typescript/leap/.eslintrc
  3. 12
      typescript/leap/.exercism/config.json
  4. 1
      typescript/leap/.exercism/metadata.json
  5. 44
      typescript/leap/HELP.md
  6. 45
      typescript/leap/README.md
  7. 20
      typescript/leap/babel.config.js
  8. 19
      typescript/leap/jest.config.js
  9. 39
      typescript/leap/leap.test.ts
  10. 3
      typescript/leap/leap.ts
  11. 33
      typescript/leap/package.json
  12. 19
      typescript/leap/tsconfig.json
  13. 5164
      typescript/leap/yarn.lock

12
typescript/leap/.eslintignore

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!.meta
# Protected or generated
.git
.vscode
# When using npm
node_modules/*
# Configuration files
babel.config.js
jest.config.js

23
typescript/leap/.eslintrc

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{
"root": true,
"parser": "@typescript-eslint/parser",
"parserOptions": {
"project": "./tsconfig.json",
"ecmaFeatures": {
"jsx": true
},
"ecmaVersion": 2020,
"sourceType": "module"
},
"extends": "@exercism/eslint-config-typescript",
"env": {
"jest": true
},
"overrides": [
{
"files": [".meta/proof.ci.ts", ".meta/exemplar.ts", "*.test.ts"],
"excludedFiles": ["custom.test.ts"],
"extends": "@exercism/eslint-config-typescript/maintainers"
}
]
}

12
typescript/leap/.exercism/config.json

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{
"blurb": "Given a year, report if it is a leap year.",
"authors": ["masters3d"],
"contributors": ["DFXLuna", "lukaszklis", "SleeplessByte"],
"files": {
"solution": ["leap.ts"],
"test": ["leap.test.ts"],
"example": [".meta/proof.ci.ts"]
},
"source": "JavaRanch Cattle Drive, exercise 3",
"source_url": "http://www.javaranch.com/leap.jsp"
}

1
typescript/leap/.exercism/metadata.json

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{"track":"typescript","exercise":"leap","id":"a6d0a1d116ab4ea68fc1e124fd5da622","url":"https://exercism.org/tracks/typescript/exercises/leap","handle":"JBiason","is_requester":true,"auto_approve":false}

44
typescript/leap/HELP.md

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# Help
## Running the tests
Execute the tests with:
```bash
$ 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`.
## Submitting your solution
You can submit your solution using the `exercism submit leap.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)
- [Exercism's support channel on gitter](https://gitter.im/exercism/support)
- 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.

45
typescript/leap/README.md

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# Leap
Welcome to Leap on Exercism's TypeScript Track.
If you need help running the tests or submitting your code, check out `HELP.md`.
## Instructions
Given a year, report if it is a leap year.
The tricky thing here is that a leap year in the Gregorian calendar occurs:
```text
on every year that is evenly divisible by 4
except every year that is evenly divisible by 100
unless the year is also evenly divisible by 400
```
For example, 1997 is not a leap year, but 1996 is. 1900 is not a leap
year, but 2000 is.
## Notes
Though our exercise adopts some very simple rules, there is more to
learn!
For a delightful, four minute explanation of the whole leap year
phenomenon, go watch [this youtube video][video].
[video]: http://www.youtube.com/watch?v=xX96xng7sAE
## Source
### Created by
- @masters3d
### Contributed to by
- @DFXLuna
- @lukaszklis
- @SleeplessByte
### Based on
JavaRanch Cattle Drive, exercise 3 - http://www.javaranch.com/leap.jsp

20
typescript/leap/babel.config.js

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module.exports = {
presets: [
[
'@babel/preset-env',
{
targets: {
node: 'current',
},
useBuiltIns: 'entry',
corejs: '3.17',
},
],
'@babel/preset-typescript',
],
plugins: [
'@babel/proposal-class-properties',
'@babel/proposal-object-rest-spread',
'@babel/plugin-syntax-bigint',
],
}

19
typescript/leap/jest.config.js

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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',
},
}

39
typescript/leap/leap.test.ts

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import { isLeap } from './leap'
describe('A leap year', () => {
test('year not divisible by 4 in common year', () => {
expect(isLeap(2015)).toBe(false)
})
test('year divisible by 2, not divisible by 4 in common year', () => {
expect(isLeap(1970)).toBe(false)
})
test('year divisible by 4, not divisible by 100 in leap year', () => {
expect(isLeap(1996)).toBe(true)
})
test('year divisible by 4 and 5 is still a leap year', () => {
expect(isLeap(1960)).toBe(true)
})
test('year divisible by 100, not divisible by 400 in common year', () => {
expect(isLeap(2100)).toBe(false)
})
test('year divisible by 100 but not by 3 is still not a leap year', () => {
expect(isLeap(1900)).toBe(false)
})
test('year divisible by 400 in leap year', () => {
expect(isLeap(2000)).toBe(true)
})
test('year divisible by 400 but not by 125 is still a leap year', () => {
expect(isLeap(2400)).toBe(true)
})
test('year divisible by 200, not divisible by 400 in common year', () => {
expect(isLeap(1800)).toBe(false)
})
})

3
typescript/leap/leap.ts

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export function isLeap(year: number): boolean {
return (year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0));
}

33
typescript/leap/package.json

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{
"name": "@exercism/typescript-leap",
"version": "1.0.0",
"description": "Exercism exercises in Typescript.",
"private": true,
"repository": {
"type": "git",
"url": "https://github.com/exercism/typescript"
},
"devDependencies": {
"@babel/core": "^7.15.5",
"@babel/plugin-proposal-class-properties": "^7.14.5",
"@babel/plugin-proposal-object-rest-spread": "^7.14.7",
"@babel/plugin-syntax-bigint": "^7.8.3",
"@babel/preset-env": "^7.15.4",
"@babel/preset-typescript": "^7.15.0",
"@types/jest": "^26.0.24",
"@types/node": "^14.17.14",
"@exercism/eslint-config-typescript": "^0.3.0",
"babel-jest": "^26.6.3",
"core-js": "^3.17.2",
"eslint": "^7.32.0",
"eslint-plugin-import": "^2.24.2",
"jest": "^26.6.3",
"typescript": "^4.4.2"
},
"scripts": {
"test": "yarn lint:types && jest --no-cache",
"lint": "yarn lint:types && yarn lint:ci",
"lint:types": "yarn tsc --noEmit -p .",
"lint:ci": "eslint . --ext .tsx,.ts"
}
}

19
typescript/leap/tsconfig.json

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{
"display": "Configuration for Node LTS",
"compilerOptions": {
"lib": ["es2020"],
"module": "commonjs",
"target": "es2020",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true,
// Because we'll be using babel
// Ensure that Babel can safely transpile files in the TypeScript project
"isolatedModules": true
},
"include": ["*", ".meta/*"],
"exclude": ["node_modules"]
}

5164
typescript/leap/yarn.lock

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