Update function signature

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## 8.1.4
 
-- **Breaking change:** Add support for ECMAScript modules (ESM) to the [*asynchronous* API](./README.md#asynchronous-api). End users running Node versions that support ESM can provide `.mjs` files, or `.js` files whose nearest parent `package.json` file contains `"type": "module"`.
+- Add support for ECMAScript modules (ESM) to the [*asynchronous* API](./README.md#asynchronous-api). End users running Node versions that support ESM can provide `.mjs` files, or `.js` files whose nearest parent `package.json` file contains `"type": "module"`.
   - `${moduleName}rc.mjs` and `${moduleName}.config.mjs` are included in the default `searchPlaces` of the asynchronous API.
   - The [synchronous API](./README.md#synchronous-api) does not support ECMAScript modules, so does not look for `.mjs` files.
   - To learn more, read ["Loading JS modules"](./README.md#loading-js-modules).
@@ -31,6 +31,7 @@
 - **Breaking change:** Drop support for Node 10 and 12.
 
 - **Breaking change:** Use npm package [js-yaml](https://www.npmjs.com/package/js-yaml) to parse YAML instead of npm package [yaml](https://www.npmjs.com/package/yaml).
+
 - Added: Loader errors now include the path of the file that was tried to be loaded.
 
 ## 7.1.0

package.json

@@ -25,6 +25,12 @@
     "check:all": "npm run test && npm run typescript && npm run lint && npm run format:check",
     "prepublishOnly": "npm run check:all && npm run build"
   },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged && npm run typescript && npm run test",
+      "pre-push": "npm run check:all"
+    }
+  },
   "lint-staged": {
     "*.{js,ts}": [
       "eslint --fix",
@@ -89,10 +95,10 @@
     "path-type": "^4.0.0"
   },
   "devDependencies": {
-    "@babel/cli": "7.19.3",
-    "@babel/core": "7.20.2",
-    "@babel/preset-env": "7.20.2",
-    "@babel/preset-typescript": "7.18.6",
+    "@babel/cli": "^7.19.3",
+    "@babel/core": "^7.20.2",
+    "@babel/preset-env": "^7.20.2",
+    "@babel/preset-typescript": "^7.18.6",
     "@types/js-yaml": "^4.0.5",
     "@types/node": "^14.0.22",
     "@types/parse-json": "^4.0.0",

src/ExplorerBase.ts

@@ -85,7 +85,7 @@ class ExplorerBase<T extends ExplorerOptions | ExplorerOptionsSync> {
     return nextDir;
   }
 
-  private loadPackageProp(filepath: string, content: string | null): unknown {
+  private loadPackageProp(filepath: string, content: string): unknown {
     const parsedContent = loaders.loadJson(filepath, content);
     const packagePropValue = getPropertyByPath(
       parsedContent,

src/index.ts

@@ -111,7 +111,7 @@ function getExplorerOptions<T extends Options | OptionsSync>(
     searchPlaces: metaSearchPlaces,
     ignoreEmptySearchPlaces: false,
     usePackagePropInConfigFiles: true,
-    loaders: { ...defaultLoadersSync, ...defaultLoaders },
+    loaders: defaultLoaders,
     transform: identity,
     cache: true,
     metaConfigFilePath: null,