Add project files

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = tab
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[{*.json,*.yml,*.yaml}]
+indent_size = 2
+indent_style = space

.github/workflows/lint.yml

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+name: Lint
+on:
+  push:
+    branches: [master]
+  pull_request:
+    types: [opened, synchronize]
+jobs:
+  lint:
+    name: Run ESLint
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-node@v1
+      with:
+        node-version: '12.x'
+    - run: npm install
+    - run: npm run lint

.gitignore

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+/node_modules/

LICENSE

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+MIT License
+
+Copyright (c) 2020 Web Scrobbler Team
+
+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.

README.md

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+# prettier-config-web-scrobbler [![NPM][NpmBadge]][Npm] [![Test][WorkflowBadge]][Workflow]
+
+Prettier configuration file for Web Scrobbler projects.
+
+## Usage
+
+You can install `prettier-config-web-scrobbler` by a following way:
+```sh
+> npm install --save-dev prettier-config-web-scrobbler
+```
+
+Then, add `prettier-config-web-scrobbler` to the `extends` array in your
+`.prettierrc.*` file.
+```json
+"prettier-config-web-scrobbler"
+```
+You can also reference this config in your `package.json` file:
+```json
+{
+  "name": "my-cool-library",
+  "version": "9000.0.1",
+  "prettier": "prettier-config-web-scrobbler"
+}
+```
+
+## License
+
+Licensed under the [MIT License](./LICENSE).
+
+<!-- Badges -->
+[NpmBadge]: https://img.shields.io/npm/v/prettier-config-web-scrobbler
+[WorkflowBadge]: https://github.com/web-scrobbler/prettier-config-web-scrobbler/workflows/Lint/badge.svg
+
+<!-- Related pages -->
+[Npm]: https://www.npmjs.com/package/prettier-config-web-scrobbler
+[Workflow]: https://github.com/web-scrobbler/prettier-config-web-scrobbler/actions?query=workflow%3ALint

index.js

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+'use strict';
+
+module.exports = {
+	tabWidth: 4,
+	useTabs: true,
+	semi: true,
+	singleQuote: true,
+	quoteProps: 'as-needed',
+	bracketSpacing: true,
+	arrowParens: 'always',
+	endOfLine: 'lf',
+	overrides: [
+		{
+			files: '*.json',
+			options: {
+				parser: 'json',
+				tabWidth: 2,
+				useTabs: false,
+			},
+		},
+		{
+			files: '*.yml',
+			options: {
+				parser: 'yaml',
+				tabWidth: 2,
+				useTabs: false,
+			},
+		},
+	],
+};