Add ESLint (#1)

* add eslint

* eslint init

* add lint command

* update eslint rules

* eslint auto-fix

1 files changed, 21 insertions, 0 deletions

diff --git a/.eslintrc.js b/.eslintrc.js
new file mode 100644
index 0000000..463b2ee
--- /dev/null
+++ b/.eslintrc.js
@@ -0,0 +1,21 @@
+module.exports = {
+  env: {
+    es2020: true,
+    node: true,
+  },
+  extends: [
+    'standard',
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 11,
+    sourceType: 'module',
+  },
+  plugins: [
+    '@typescript-eslint',
+  ],
+  rules: {
+    'comma-dangle': ['error', 'always-multiline'],
+    'space-before-function-paren': ['error', 'never'],
+  },
+}