chore: configure eslint

Author: openscript

eslint.config.mjs

@@ -0,0 +1,16 @@
+import globals from "globals";
+
+import path from "path";
+import { fileURLToPath } from "url";
+import { FlatCompat } from "@eslint/eslintrc";
+import pluginJs from "@eslint/js";
+
+// mimic CommonJS variables -- not needed if using CommonJS
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({baseDirectory: __dirname, recommendedConfig: pluginJs.configs.recommended});
+
+export default [
+  {languageOptions: { globals: globals.node }},
+  ...compat.extends("airbnb-base"),
+];