perf: avoid Array.isArray

nodejs · Dec 3, 2023 · fb804d5 · fb804d5
1 parent 05c9301
commit fb804d5
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/lib/core/util.js b/lib/core/util.js
@@ -229,10 +229,13 @@ function parseHeaders (headers, obj = {}) {
     let val = obj[lowerCasedKey]
 
     if (!val) {
-      if (Array.isArray(headers[i + 1])) {
-        obj[lowerCasedKey] = headers[i + 1].map(x => x.toString('utf8'))
+      const headersValue = headers[i + 1]
+      if (typeof headersValue === 'string') {
+        obj[lowerCasedKey] = headersValue
+      } else if (Array.isArray(headersValue)) {
+        obj[lowerCasedKey] = headersValue.map(x => x.toString('utf8'))
       } else {
-        obj[lowerCasedKey] = headers[i + 1].toString('utf8')
+        obj[lowerCasedKey] = headersValue.toString('utf8')
       }
     } else {
       if (!Array.isArray(val)) {