eslint configuration

.eslintrc.json

@@ -0,0 +1,13 @@
+{
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 12,
+        "sourceType": "module"
+    },
+    "rules": {
+    }
+}

.nvimrc

@@ -0,0 +1 @@
+.vimrc

.vimrc

@@ -0,0 +1,2 @@
+set autoread
+set path+=.,src/**

package.json

@@ -35,6 +35,7 @@
     "@babel/plugin-transform-runtime": "^7.13.9",
     "@babel/preset-env": "^7.13.9",
     "babel-plugin-transform-class-properties": "^6.24.1",
+    "eslint": "^7.22.0",
     "jest": "^26.6.3"
   },
   "type": "module",