chore: fix linting, and include js, cjs, and mjs files

eslint.config.mjs

@@ -6,7 +6,12 @@ import tsEslint from "typescript-eslint";
 
 export default [
 	{
-		ignores: [".github/", "dist/", "node_modules/", "types/", "*.mjs"],
+		ignores: [
+			".github/",
+			"dist/",
+			"node_modules/",
+			"types/",
+		],
 	},
 
 	/**
@@ -121,6 +126,17 @@ export default [
 		},
 	},
 
+	/**
+	 * JavaScript.
+	 */
+	{
+		files: ["**/*.{js,cjs,mjs}"],
+		rules: {
+			"@typescript-eslint/explicit-function-return-type": "off",
+			"jsdoc/no-types": "off",
+		},
+	},
+
 	/**
 	 * Tests and mocks.
 	 */

tests/__setup__/empty-transform.cjs

@@ -3,13 +3,10 @@
  */
 module.exports = {
 	/**
-	 * Processes the file, transforming it to a readable state.
-	 * @param {string} sourceText Text of the file to transform.
-	 * @param {string} sourcePath Path to the file being transformed.
-	 * @param {object} options Jest options, and context, of the current transformation.
-	 * @returns The code, and optional map, of the transformed file.
+	 * Processes the file, transforming it to a readable state... of no code.
+	 * @returns An empty set of code, without a map, that mimics a transformed file.
 	 */
-	process: (sourceText, sourcePath, options) => {
+	process: () => {
 		return { code: "" };
 	},
 };