Merge pull request #16 from approvers/linters

Configure linters

.eslintrc.js

@@ -0,0 +1,23 @@
+module.exports = {
+  env: {
+    es6: true,
+    node: true,
+  },
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+  ],
+  globals: {
+    Atomics: 'readonly',
+    SharedArrayBuffer: 'readonly',
+  },
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 11,
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint'],
+  rules: {},
+};

.github/workflows/node.yml

@@ -0,0 +1,23 @@
+name: Node.js
+
+on:
+  - push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - run: npm ci
+      - run: npm run lint

.prettierrc.js

@@ -0,0 +1,6 @@
+module.exports = {
+  trailingComma: 'es5',
+  tabWidth: 2,
+  semi: true,
+  singleQuote: true,
+};