add linter

.eslintrc.json

@@ -0,0 +1,21 @@
+{
+    "env": {
+        "browser": true,
+        "es2021": true,
+        "node": true
+    },
+    "extends": "standard",
+    "overrides": [
+    ],
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module"
+    },
+    "rules": {
+        "array-bracket-spacing": [2, "always"],
+        "computed-property-spacing": [2, "always"],
+        "object-curly-spacing": [2, "always"],
+        "template-curly-spacing": ["error", "always"],
+        "space-in-parens": ["error", "always"]
+    }
+}

package.json

@@ -45,8 +45,12 @@
     "yargs": "^15.4.1"
   },
   "devDependencies": {
-    "eslint": "^7.8.1",
+    "eslint": "^8.57.0",
+    "eslint-config-standard": "^17.1.0",
+    "eslint-plugin-import": "^2.29.1",
     "eslint-plugin-jest": "^24.0.0",
+    "eslint-plugin-n": "^16.6.2",
+    "eslint-plugin-promise": "^6.2.0",
     "jest": "^29.7.0"
   }
 }