perf(lib): return [] if empty string is passed to server parser

Since `htmlparser2` returns the same result, this early return is an optimization since nothing needs to be instantiated.
remarkablemark · Nov 4, 2019 · 3a95c89 · 3a95c89
1 parent 86c27d2
commit 3a95c89
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/lib/html-to-dom-server.js b/lib/html-to-dom-server.js
@@ -15,6 +15,11 @@ function parseDOM(html, options) {
   if (typeof html !== 'string') {
     throw new TypeError('First argument must be a string.');
   }
+
+  if (!html) {
+    return [];
+  }
+
   var handler = new DomHandler(options);
   new Parser(handler, options).end(html);
   return handler.dom;