chore: migrate to flat config

Author: freaktechnik

.eslintrc.json

@@ -0,0 +1,19 @@
+import freaktechnikConfigNode from "@freaktechnik/eslint-config-node";
+import freaktechnikConfigTest from "@freaktechnik/eslint-config-test";
+import eslintPlugin from "eslint-plugin-eslint-plugin";
+
+export default [
+    ...freaktechnikConfigNode,
+    eslintPlugin.configs["flat/recommended"],
+    freaktechnikConfigTest,
+    {
+        files: ["**"],
+        rules: {
+            "unicorn/prefer-module": "off"
+        }
+    },
+    {
+        files: ["test/rules/*.mjs"],
+        ...eslintPlugin.configs["flat/tests-recommended"]
+    }
+];

eslint.config.js

@@ -12,26 +12,26 @@ import preferFlat from "./rules/prefer-flat.js";
 const index = {
     meta: {
         name: "eslint-plugin-array-func",
-        version: "5.0.1"
+        version: "5.0.1",
     },
     rules: {
         "from-map": fromMap,
         "no-unnecessary-this-arg": noUnnecessaryThisArgument,
         "prefer-array-from": preferArrayFrom,
         "avoid-reverse": avoidReverse,
         "prefer-flat-map": preferFlatMap,
-        "prefer-flat": preferFlat
+        "prefer-flat": preferFlat,
     },
-    configs: {}
+    configs: {},
 };
 index.configs.recommended = {
     plugins: { "array-func": index },
     rules: {
         "array-func/from-map": "error",
         "array-func/no-unnecessary-this-arg": "error",
         "array-func/prefer-array-from": "error",
-        "array-func/avoid-reverse": "error"
-    }
+        "array-func/avoid-reverse": "error",
+    },
 };
 index.configs.all = {
     plugins: { "array-func": index },
@@ -41,8 +41,8 @@ index.configs.all = {
         "array-func/prefer-array-from": "error",
         "array-func/avoid-reverse": "error",
         "array-func/prefer-flat-map": "error",
-        "array-func/prefer-flat": "error"
-    }
+        "array-func/prefer-flat": "error",
+    },
 };
 
 export default index;