socket: fix close arg check.

chjj · Mar 6, 2019 · efdecd3 · efdecd3
1 parent 4ce782d
commit efdecd3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/internal/socket.js b/lib/internal/socket.js
@@ -619,7 +619,7 @@ class Port extends Socket {
   }
 
   close(callback) {
-    if (callback != null && typeof callback === 'function')
+    if (callback != null && typeof callback !== 'function')
       throw new TypeError('"callback" must be a function.');
 
     if (this._closed) {