Copy dom NodeList faster than slice.

Polymer · Oct 19, 2015 · 8cad475 · 8cad475
1 parent e2674bc
commit 8cad475
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/lib/dom-api.html b/src/lib/dom-api.html
@@ -926,7 +926,10 @@
       // actual children will be treated as the rendered state once lightChildren
       // is populated.
       if (!node._lightChildren) {
-        var c$ = Array.prototype.slice.call(node.childNodes);
+        var c$ = [];
+        for (var a=node.firstChild; a = a && a.nextSibling;) {
+          c$.push(a);
+        }
         for (var i=0, l=c$.length, child; (i<l) && (child=c$[i]); i++) {
           child._lightParent = child._lightParent || node;
         }