Set up TypeScript linting with ESLint
diff --git a/.eslintrc.js b/.eslintrc.js
index 32a4ec9..82a6833 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -31,40 +31,9 @@
module.exports = {
root: true,
- env: {
- es6: true,
- 'shared-node-browser': true,
- },
- extends: ['eslint:recommended', 'plugin:import/recommended', 'prettier'],
- globals: {
- globalThis: true,
- },
- parser: 'babel-eslint',
- parserOptions: {
- ecmaVersion: 2020,
- sourceType: 'module',
- },
- plugins: ['import', 'prettier'],
+ extends: ['eslint:recommended', 'prettier'],
+ plugins: ['prettier'],
rules: {
- 'import/extensions': ['error', 'always', { ignorePackages: true }],
- 'import/first': 'error',
- 'import/newline-after-import': 'error',
- 'import/no-default-export': 'error',
- 'import/no-internal-modules': 'error',
- 'import/no-relative-parent-imports': 'error',
- 'import/order': ['error', { 'newlines-between': 'always' }],
- 'import/unambiguous': 'error',
- 'no-restricted-syntax': [
- 'error',
- 'BindExpression',
- 'ClassProperty',
- 'Decorator',
- 'DoExpression',
- 'ExportDefaultSpecifier',
- 'ExportNamespaceSpecifier',
- 'TypeAnnotation',
- 'JSXElement',
- ],
'prettier/prettier': [
'error',
{
@@ -73,11 +42,6 @@
},
],
},
- settings: {
- 'import/resolver': {
- 'babel-module': babelModuleResolver.options,
- },
- },
overrides: [
{
files: [
@@ -88,12 +52,9 @@
'nyc.config.js',
],
env: {
+ es2017: true,
node: true,
},
- parser: 'espree',
- parserOptions: {
- sourceType: 'script',
- },
plugins: ['node'],
rules: {
'no-console': 'off',
@@ -101,19 +62,69 @@
},
},
{
- files: ['web/demo/**/*.js'],
+ files: ['**/*.ts'],
env: {
- browser: true,
+ es2020: true,
+ 'shared-node-browser': true,
+ },
+ extends: [
+ 'plugin:@typescript-eslint/recommended',
+ 'plugin:@typescript-eslint/recommended-requiring-type-checking',
+ 'plugin:import/recommended',
+ 'plugin:import/typescript',
+ ],
+ parserOptions: {
+ ecmaVersion: 2020,
+ project: ['./tsconfig.json'],
+ tsconfigRootDir: __dirname,
+ },
+ plugins: ['@typescript-eslint', 'import'],
+ rules: {
+ '@typescript-eslint/explicit-function-return-type': 'off',
+ '@typescript-eslint/no-unused-vars': [
+ 'error',
+ { argsIgnorePattern: '^_' },
+ ],
+
+ 'import/extensions': [
+ 'error',
+ 'ignorePackages',
+ {
+ ts: 'never',
+ },
+ ],
+ 'import/first': 'error',
+ 'import/newline-after-import': 'error',
+ 'import/no-default-export': 'error',
+ 'import/no-internal-modules': 'error',
+ 'import/no-relative-parent-imports': 'error',
+ 'import/order': ['error', { 'newlines-between': 'always' }],
+ 'import/unambiguous': 'error',
+ },
+ settings: {
+ 'import/resolver': {
+ 'babel-module': babelModuleResolver.options,
+ },
},
},
{
- files: ['packages/*/test/**/*.js', 'test/**/*.js'],
+ files: ['**/@types/**/*.d.ts'],
+ rules: {
+ 'import/no-default-export': 'off',
+ 'import/unambiguous': 'off',
+ },
+ },
+ {
+ files: ['packages/*/test/**/*.ts', 'test/**/*.ts'],
env: {
mocha: true,
},
globals: {
assert: true,
},
+ parserOptions: {
+ project: ['./tsconfig.tests.json'],
+ },
rules: {
'import/no-internal-modules': [
'error',
@@ -128,10 +139,20 @@
},
},
{
- files: ['packages/dom/{src,test}/**/*.js'],
+ files: ['packages/dom/**/*.js'],
env: {
browser: true,
},
},
+ {
+ files: ['web/demo/**/*.js'],
+ env: {
+ browser: true,
+ es2020: true,
+ },
+ parserOptions: {
+ sourceType: 'module',
+ },
+ },
],
};
diff --git a/package.json b/package.json
index 190cae1..e30f679 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
"build:esm": "cross-env BABEL_ENV=esm yarn build:babel -d esm src",
"build:misc": "lerna exec -- cp ../../LICENSE ../../NOTICE .",
"clean": "lerna exec -- rimraf LICENSE NOTICE esm lib",
- "lint": "eslint .",
+ "lint": "eslint --ext js,ts .",
"prepare": "lerna run prepare",
"prepublishOnly": "yarn run build",
"start": "yarn run web:server",
@@ -42,8 +42,9 @@
"@types/mocha": "^7.0.2",
"@types/node-fetch": "^2.5.7",
"@types/resolve": "^1.17.0",
+ "@typescript-eslint/eslint-plugin": "^3.7.0",
+ "@typescript-eslint/parser": "^3.7.0",
"ajv": "^6.11.0",
- "babel-eslint": "^10.0.3",
"babel-loader": "^8.0.5",
"babel-plugin-istanbul": "^6.0.0",
"babel-plugin-module-resolver": "^4.0.0",
