Added no-duplicate-imports rule (#19)

* Added `no-duplicate-imports` rule

* Update eslint.config.mjs

* Update eslint.config.mjs

Co-authored-by: Max Hauser <moritz.heusinger@gmail.com>

---------

Co-authored-by: Max Hauser <moritz.heusinger@gmail.com>

README.md

@@ -55,9 +55,12 @@ It is suggested to create separate `eslint.config.mjs` files for backend and for
 -->
 
 ### **WORK IN PROGRESS**
+
+-   (@GermanBluefox) Added `no-duplicate-imports` rule
 -   (@mcm1957/@foxriver76) allow unused args with `_` prefix in JavaScript too
 
 ### 0.1.7 (2024-11-13)
+
 -   (@foxriver76) Allow `require` imports for `.js` files
 
 ### 0.1.6 (2024-09-16)

eslint.config.mjs

@@ -44,6 +44,7 @@ const generalRules = {
     // https://eslint.org/docs/latest/rules/prefer-template
     // Enforce the use of template literals instead of string concatenation: "Hello, " + name + "!" => `Hello, ${name}!`
     'prefer-template': 'error',
+    'no-duplicate-imports': 'error',
     '@typescript-eslint/no-unsafe-assignment': 'off',
     '@typescript-eslint/no-unused-expressions': 'off',
 };

package.json

@@ -1,42 +1,42 @@
 {
-  "name": "@iobroker/eslint-config",
-  "version": "0.1.7",
-  "description": "Eslint config of ioBroker",
-  "homepage": "https://github.com/ioBroker/ioBroker.eslint-config",
-  "main": "eslint.config.mjs",
-  "author": {
-    "name": "foxriver76",
-    "url": "www.moritz-heusinger.de",
-    "email": "info@moritz-heusinger.de"
-  },
-  "publishConfig": {
-    "access": "public"
-  },
-  "files": [
-    "eslint.config.mjs",
-    "prettier.config.mjs",
-    "README.md"
-  ],
-  "peerDependencies": {
-    "@eslint/eslintrc": "^3.1.0",
-    "@eslint/js": "^9.10.0",
-    "@typescript-eslint/eslint-plugin": "^8.4.0",
-    "@typescript-eslint/parser": "^8.4.0",
-    "eslint": ">=9.10.0",
-    "eslint-config-prettier": "^9.1.0",
-    "eslint-plugin-jsdoc": "^50.2.2",
-    "eslint-plugin-prettier": "^5.2.1",
-    "eslint-plugin-react": "^7.36.0",
-    "eslint-plugin-react-hooks": "^5.1.0-rc.0",
-    "eslint-plugin-unicorn": "^55.0.0",
-    "globals": "^15.9.0",
-    "prettier": "^3.3.3",
-    "typescript-eslint": "^8.5.0"
-  },
-  "devDependencies": {
-    "@alcalzone/release-script": "^3.8.0"
-  },
-  "scripts": {
-    "release": "release-script -y --noPush"
-  }
+    "name": "@iobroker/eslint-config",
+    "version": "0.1.7",
+    "description": "Eslint config of ioBroker",
+    "homepage": "https://github.com/ioBroker/ioBroker.eslint-config",
+    "main": "eslint.config.mjs",
+    "author": {
+        "name": "foxriver76",
+        "url": "www.moritz-heusinger.de",
+        "email": "info@moritz-heusinger.de"
+    },
+    "publishConfig": {
+        "access": "public"
+    },
+    "files": [
+        "eslint.config.mjs",
+        "prettier.config.mjs",
+        "README.md"
+    ],
+    "peerDependencies": {
+        "@eslint/eslintrc": "^3.1.0",
+        "@eslint/js": "^9.10.0",
+        "@typescript-eslint/eslint-plugin": "^8.4.0",
+        "@typescript-eslint/parser": "^8.4.0",
+        "eslint": ">=9.10.0",
+        "eslint-config-prettier": "^9.1.0",
+        "eslint-plugin-jsdoc": "^50.2.2",
+        "eslint-plugin-prettier": "^5.2.1",
+        "eslint-plugin-react": "^7.36.0",
+        "eslint-plugin-react-hooks": "^5.1.0-rc.0",
+        "eslint-plugin-unicorn": "^55.0.0",
+        "globals": "^15.9.0",
+        "prettier": "^3.3.3",
+        "typescript-eslint": "^8.5.0"
+    },
+    "devDependencies": {
+        "@alcalzone/release-script": "^3.8.0"
+    },
+    "scripts": {
+        "release": "release-script -y --noPush"
+    }
 }