OpenBeta / sandbag

JS utilities for working with climbing grades
MIT License
24 stars 17 forks source link
climbing-grade-conversion climbing-grades rock-climbing yds

Develop branch License

All Contributors

What is this?

Javascript utilities for working with rock climbing grades.

Supported systems

Sport & Traditional climbing

Bouldering

Aid

Ice

Help Wanted

Code contributions are most welcome!

Questions?

Join us on Discord.


How to use the library

Install the package

Using NPM

npm install @openbeta/sandbag

Using Yarn

yarn add @openbeta/sandbag

Sample Usage

import { French, YosemiteDecimal } from '@openbeta/sandbag'

const score = French.getScore('8a') // Output [ 84, 85 ]

// Support slash grade
const slashGradeScore=French.getScore('7c+/8a') // Output [ 83, 84 ]

// Accept +/- modifier
const plusGrade= YosemiteDecimal.getScore('5.12+') // Output [ 79, 80 ]
import { Font } from '@openbeta/sandbag'

// Single score provided
Font.getGrade(80) // Output '7c'

// Support a range of scores 
Font.getGrade([79,81]) // Output'7b+/7c'

console.log('Is 6A a V Scale?',VScale.isType('6A')) // Output false console.log('Is 6A a Font Scale?',Font.isType('6A')) // Output true


- Convert Grades Across Scales

``` javascript
import {convertGrade , GradeScales }from '@openbeta/sandbag'

const ydsInFrench=convertGrade('5.11a',GradeScales.YDS,GradeScales.FRENCH) // Output '6b+/6c'

const fontInVScale=convertGrade('6a',GradeScales.FONT,GradeScales.VSCALE) //OutPut 'V3'

// Conversions across different disciplines are not allowed
const sportToBoulder=convertGrade('5.11a',GradeScales.YDS,GradeScales.VSCALE)
// Output: Scale: Yosemite Decimal System doesn't support converting to Scale: V Scale
// ''
import { Ewbank } from '@openbeta/sandbag'

Ewbank.getGradeBand('10') // Output: 'beginner'
Ewbank.getGradeBand('30') // Output: 'expert'
Ewbank.getGradeBand('6a') // Output: Unexpected grade format: 6a for grade scale Ewbank 'unknown'

import { French, YosemiteDecimal } from '@openbeta/sandbag'

const harder = French.getScore('8a')  // Output: [ 84, 85 ]
const easier = YosemiteDecimal.getScore('5.13a') // Output: [ 82, 83 ]

console.log('Is 8a harder than 5.13a?',harder > easier) // Output: true

See unit tests for more examples.

Development (TBD)

yarn install
yarn test

Generating Test Coverage Report

To generate a test coverage report using Jest run the following command in your terminal:

npx jest --coverage

If you're using macOS, you can directly access the coverage report in your browser by opening the following URL:

file:///Users/<userName>/sandbag/coverage/lcov-report/index.html

How to publish a new release to NPM

Submit a PR with commit message [npm publish]

Project Maintainers

License

MIT

Contributors āœØ

Thanks goes to these wonderful people (emoji key):

AntoineM
AntoineM

šŸ’» šŸ¤”
Kendra Gibbons
Kendra Gibbons

šŸ’» šŸ¤”
MichaelDimmitt
MichaelDimmitt

šŸ’»
Clinton Lunn
Clinton Lunn

šŸ’»
Darren Lew
Darren Lew

šŸ’» šŸ¤”
Klaus
Klaus

šŸ’» šŸ¤”
Nathan Musoke
Nathan Musoke

šŸ’» šŸ¤”
Talia Aleyna Hortac
Talia Aleyna Hortac

šŸ’»
Yun Ji
Yun Ji

šŸ’» šŸ¤”
Josh Zimmerman
Josh Zimmerman

šŸ’»
John Roberts
John Roberts

šŸ’» šŸ¤”
Joey Marino
Joey Marino

šŸ’» šŸ¤”
Iacami Gevaerd
Iacami Gevaerd

šŸ’» šŸ¤”

This project follows the all-contributors specification. Contributions of any kind welcome!