add & configure eslint for this project

.eslintrc.js

@@ -0,0 +1,18 @@
+module.exports = {
+  parserOptions: {
+    ecmaVersion: "latest"
+  },
+  env: {
+    browser: false,
+    es6: true,
+    node: true,
+    mocha: true
+  },
+  extends: [
+    'eslint:recommended'
+  ],
+  rules: {
+    // override/add rules settings here, such as:
+    // 'vue/no-unused-vars': 'error'
+  }
+}

package.json

@@ -4,7 +4,8 @@
   "description": "A brute force solver for tri peaks solitaire written in javascript",
   "main": "solver.js",
   "scripts": {
-    "test": "mocha"
+    "test": "mocha",
+    "lint": "eslint --ext .js --ignore-path .gitignore --fix ."
   },
   "repository": {
     "type": "git",
@@ -17,6 +18,7 @@
   },
   "homepage": "https://github.com/IgniparousTempest/javascript-tri-peaks-solitaire-solver#readme",
   "devDependencies": {
+    "eslint": "^8.23.0",
     "mocha": "^10.0.0"
   }
 }