Implement scrabble-score in Javascript

javascript/scrabble-score/.eslintrc

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+{
+  "root": true,
+  "extends": "@exercism/eslint-config-javascript",
+  "env": {
+    "jest": true
+  },
+  "overrides": [
+    {
+      "files": [".meta/proof.ci.js", ".meta/exemplar.js", "*.spec.js"],
+      "excludedFiles": ["custom.spec.js"],
+      "extends": "@exercism/eslint-config-javascript/maintainers"
+    }
+  ]
+}

javascript/scrabble-score/.gitignore

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+/node_modules
+/bin/configlet
+/bin/configlet.exe
+/pnpm-lock.yaml
+/yarn.lock

javascript/scrabble-score/.npmrc

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+audit=false

javascript/scrabble-score/HELP.md

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+# Help
+
+## Running the tests
+
+## Setup
+
+Go through the setup [instructions for JavaScript][docs-exercism-javascript] to install the necessary dependencies.
+
+## Requirements
+
+Install assignment dependencies:
+
+```shell
+# Using npm
+npm install
+
+# Alternatively using yarn
+yarn
+```
+
+## Making the test suite pass
+
+All exercises come with a test suite to help you validate your solution before submitting.
+You can execute these tests by opening a command prompt in the exercise's directory, and then running:
+
+```bash
+# Using npm
+npm test
+
+# Alternatively using yarn
+yarn test
+```
+
+In some test suites all tests but the first have been skipped.
+
+Once you get a test passing, you can enable the next one by changing `xtest` to `test`.
+
+## Writing custom tests
+
+If you wish to write additional, custom, tests, create a new file `custom.spec.js`, and submit it with your solution together with the new file:
+
+```shell
+exercism submit numbers.js custom.spec.js
+```
+
+[docs-exercism-javascript]: https://exercism.org/docs/tracks/javascript/installation
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit scrabble-score.js` 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 [JavaScript track's documentation](https://exercism.org/docs/tracks/javascript)
+- The [JavaScript track's programming category on the forum](https://forum.exercism.org/c/programming/javascript)
+- [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:
+
+- [/r/javascript](https://www.reddit.com/r/javascript) is the Javascript subreddit.
+- [StackOverflow](https://stackoverflow.com/questions/tagged/javascript+exercism) can be used to search for your problem and see if it has been answered already. You can also ask and answer questions.
+- [Github issue tracker](https://github.com/exercism/javascript/issues) is where we track our development and maintainance of Javascript exercises in exercism. But if none of the above links help you, feel free to post an issue here.

javascript/scrabble-score/LICENSE

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+MIT License
+
+Copyright (c) 2021 Exercism
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

javascript/scrabble-score/README.md

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+# Scrabble Score
+
+Welcome to Scrabble Score on Exercism's JavaScript Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Instructions
+
+Given a word, compute the Scrabble score for that word.
+
+## Letter Values
+
+You'll need these:
+
+```text
+Letter                           Value
+A, E, I, O, U, L, N, R, S, T       1
+D, G                               2
+B, C, M, P                         3
+F, H, V, W, Y                      4
+K                                  5
+J, X                               8
+Q, Z                               10
+```
+
+## Examples
+
+"cabbage" should be scored as worth 14 points:
+
+- 3 points for C
+- 1 point for A, twice
+- 3 points for B, twice
+- 2 points for G
+- 1 point for E
+
+And to total:
+
+- `3 + 2*1 + 2*3 + 2 + 1`
+- = `3 + 2 + 6 + 3`
+- = `5 + 9`
+- = 14
+
+## Extensions
+
+- You can play a double or a triple letter.
+- You can play a double or a triple word.
+
+## Source
+
+### Created by
+
+- @matthewmorgan
+
+### Contributed to by
+
+- @amscotti
+- @ankorGH
+- @ntshcalleia
+- @rchavarria
+- @ryanplusplus
+- @serixscorpio
+- @SleeplessByte
+
+### Based on
+
+Inspired by the Extreme Startup game - https://github.com/rchatley/extreme_startup

javascript/scrabble-score/babel.config.js

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+module.exports = {
+  presets: ['@exercism/babel-preset-javascript'],
+  plugins: [],
+};