chore: update

lib/eslint/eslint.js

@@ -273,6 +273,17 @@ function findFlatConfigFile(cwd) {
  );
 }
 
+/**
+ * Check if the file is a TypeScript file.
+ * @param {string} filePath The file path to check.
+ * @returns {boolean} `true` if the file is a TypeScript file, `false` if it's not.
+ */
+function isFileTS(filePath) {
+ const fileExtension = path.extname(filePath);
+
+ return fileExtension.endsWith("ts");
+}
+
 /**
  * Load the config array from the given filename.
  * @param {string} filePath The filename to load from.
@@ -318,16 +329,16 @@ async function loadFlatConfigFile(filePath) {
 
  let config;
 
- if (filePath.match(/\.[mc]?ts/)) {
- const { tsImport } = await import('tsx/esm/api')
+ if (isFileTS(filePath)) {
+ const { tsImport } = await import("tsx/esm/api");
  config = await tsImport(fileURL.pathname, __filename);
  }
  else {
  config = await import(fileURL);
  }
 
  if (config.default) {
- config = await config.default
+ config = await config.default;
  }
 
  importedConfigFileModificationTime.set(filePath, mtime);