adopt lint with usual plugins

Author: baileympearson

.eslintrc

@@ -1,13 +1,112 @@
 {
+  "root": true,
   "extends": [
-    "semistandard",
-    "plugin:promise/recommended",
+    "eslint:recommended",
+    "plugin:prettier/recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
     "plugin:@typescript-eslint/recommended"
   ],
+  "env": {
+    "node": true,
+    "mocha": true,
+    "es6": true
+  },
+  "parserOptions": {
+    "ecmaVersion": 2019
+  },
+  "plugins": [
+    "@typescript-eslint",
+    "prettier"
+  ],
+  "parser": "@typescript-eslint/parser",
   "rules": {
-    "@typescript-eslint/no-explicit-any": 0,
-    "@typescript-eslint/no-empty-function": 0,
-    "no-return-assign": 0,
-    "space-before-function-paren": ["error", "never"]
-  }
-}
+    "no-restricted-properties": [
+      "error",
+      {
+        "object": "describe",
+        "property": "only"
+      },
+      {
+        "object": "it",
+        "property": "only"
+      },
+      {
+        "object": "context",
+        "property": "only"
+      }
+    ],
+    "prettier/prettier": "error",
+    "no-console": "error",
+    "valid-typeof": "error",
+    "eqeqeq": [
+      "error",
+      "always",
+      {
+        "null": "ignore"
+      }
+    ],
+    "strict": [
+      "error",
+      "global"
+    ],
+    "no-restricted-syntax": [
+      "error",
+      {
+        "selector": "TSEnumDeclaration",
+        "message": "Do not declare enums"
+      },
+      {
+        "selector": "BinaryExpression[operator=/[=!]==/] Identifier[name='undefined']",
+        "message": "Do not strictly check undefined"
+      },
+      {
+        "selector": "BinaryExpression[operator=/[=!]==/] Literal[raw='null']",
+        "message": "Do not strictly check null"
+      },
+      {
+        "selector": "BinaryExpression[operator=/[=!]==?/] Literal[value='undefined']",
+        "message": "Do not strictly check typeof undefined (NOTE: currently this rule only detects the usage of 'undefined' string literal so this could be a misfire)"
+      }
+    ],
+    "@typescript-eslint/no-require-imports": "off",
+    "@typescript-eslint/no-unused-vars": [
+      "error",
+      {
+        "argsIgnorePattern": "^_",
+        "caughtErrorsIgnorePattern": "^_",
+        "destructuredArrayIgnorePattern": "^_",
+        "varsIgnorePattern": "^_"
+      }
+    ]
+  },
+  "overrides": [
+    {
+      "files": [
+        "lib/*.js"
+      ],
+      "parserOptions": {
+        "ecmaVersion": 2019,
+        "sourceType": "commonjs"
+      }
+    },
+    {
+      "files": [
+        "test/**/*ts"
+      ],
+      "rules": {
+        // chat `expect(..)` style chaining is considered
+        // an unused expression
+        "@typescript-eslint/no-unused-expressions": "off"
+      }
+    },
+    {
+      // json configuration files
+      "files": [
+        ".*.json"
+      ],
+      "rules": {
+        "@typescript-eslint/no-unused-expressions": "off"
+      }
+    }
+  ]
+}

package.json

@@ -28,7 +28,7 @@
     ".esm-wrapper.mjs"
   ],
   "scripts": {
-    "lint": "eslint \"{src,test}/**/*.ts\"",
+    "lint": "ESLINT_USE_FLAT_CONFIG=false eslint \"{src,test}/**/*.ts\"",
     "test": "npm run lint && npm run build && nyc mocha --colors -r ts-node/register test/*.ts",
     "build": "npm run compile-ts && gen-esm-wrapper . ./.esm-wrapper.mjs",
     "prepack": "npm run build",
@@ -39,16 +39,16 @@
     "@types/chai": "^5.0.1",
     "@types/mocha": "^10.0.10",
     "@types/node": "^24.1.0",
-    "@typescript-eslint/eslint-plugin": "^4.2.0",
-    "@typescript-eslint/parser": "^4.2.0",
+    "@typescript-eslint/eslint-plugin": "^8.39.1",
+    "@typescript-eslint/parser": "^8.39.1",
     "chai": "^4.2.0",
-    "eslint": "^7.9.0",
-    "eslint-config-semistandard": "^15.0.1",
-    "eslint-config-standard": "^14.1.1",
+    "eslint": "^9.33.0",
     "eslint-plugin-import": "^2.22.0",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^7.1.0",
     "eslint-plugin-standard": "^5.0.0",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-prettier": "^5.5.4",
     "gen-esm-wrapper": "^1.1.3",
     "mocha": "^11.0.1",
     "nyc": "^15.1.0",
@@ -59,4 +59,4 @@
     "@types/whatwg-url": "^13.0.0",
     "whatwg-url": "^14.1.0 || ^13.0.0"
   }
-}
+}