Add ESLint

Author: arqunis

eslint.config.js

@@ -0,0 +1,60 @@
+import globals from "globals";
+import js from "@eslint/js";
+import ts from "typescript-eslint";
+import prettier from "eslint-config-prettier/flat";
+
+import { defineConfig, globalIgnores } from "eslint/config";
+
+const rootDir = import.meta.dirname;
+
+export default defineConfig([
+    globalIgnores(["node_modules", "**/*.d.ts", "dist", "vite.config.ts"]),
+    {
+        languageOptions: {
+            globals: globals.browser,
+        },
+    },
+    {
+        files: [
+            "**/*.js",
+            "**/*.cjs",
+            "**/*.mjs",
+            "**/*.jsx",
+            "**/*.ts",
+            "**/*.tsx",
+        ],
+    },
+    js.configs.recommended,
+    ts.configs["strictTypeChecked"],
+    ts.configs["stylisticTypeChecked"],
+    {
+        files: [
+            "**/*.js",
+            "**/*.cjs",
+            "**/*.mjs",
+            "**/*.jsx",
+            "**/*.ts",
+            "**/*.tsx",
+        ],
+        languageOptions: {
+            parser: ts.parser,
+            parserOptions: {
+                projectService: true,
+                tsconfigRootDir: rootDir,
+            },
+        },
+    },
+    {
+        rules: {
+            "@typescript-eslint/no-non-null-assertion": "off",
+            "@typescript-eslint/no-inferrable-types": [
+                "warn",
+                {
+                    ignoreParameters: true,
+                    ignoreProperties: true,
+                },
+            ],
+        },
+    },
+    prettier,
+]);