Refactor generateHashes function signature

lib/hash.js

@@ -21,13 +21,13 @@ async function generateFileHash (filePath) {
  * Can be used both at build time and runtime.
  *
  * @param {string|string[]} rootPaths - A single root directory or an array of root directories to process.
- * @param {string|string[]} ignore - An array of glob patterns to ignore.
- * @param {boolean} includeDotFiles - Whether to include dot files.
+ * @param {string|string[]|undefined} ignore - An array of glob patterns to ignore.
+ * @param {boolean} [includeDotFiles] - Whether to include dot files.
  * @param {boolean} [writeToFile] - Whether to write the hash map to a file (for build) or return it (for runtime).
  * @param {string} [outputPath='.tmp/hashes.json'] - The output file path, if writing to a file.
  * @returns {Promise<void|Map<string, string>>} - Returns nothing if writing to a file, or the hash map if not.
  */
-async function generateHashes (rootPaths, ignore, includeDotFiles, writeToFile = false, outputPath = '.tmp/hashes.json') {
+async function generateHashes (rootPaths, ignore, includeDotFiles = false, writeToFile = false, outputPath = '.tmp/hashes.json') {
   const fileHashes = new Map()
   const roots = Array.isArray(rootPaths) ? rootPaths : [rootPaths]