From a2184526d862d7d738a087d4793baa35fe350619 Mon Sep 17 00:00:00 2001
From: James Strachan <james.strachan@gmail.com>
Date: Fri, 20 Jul 2012 12:12:45 +0100
Subject: [PATCH] added a Node.clear() helper method so they can be cleared
 like collections

---
 libraries/stdlib/src/kotlin/dom/Dom.kt | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/libraries/stdlib/src/kotlin/dom/Dom.kt b/libraries/stdlib/src/kotlin/dom/Dom.kt
index 226bf17a042..2d2d11fb025 100644
--- a/libraries/stdlib/src/kotlin/dom/Dom.kt
+++ b/libraries/stdlib/src/kotlin/dom/Dom.kt
@@ -246,7 +246,17 @@ class ElementListAsList(val nodeList: NodeList): AbstractList<Element>() {
 
 }
 
-
+/** Removes all the children from this node */
+fun Node.clear(): Unit {
+    while (true) {
+        val child = firstChild
+        if (child == null) {
+            return
+        } else {
+            removeChild(child)
+        }
+    }
+}
 
 /** Returns an [[Iterator]] over the next siblings of this node */
 fun Node.nextSiblings() : Iterator<Node> = NextSiblingIterator(this)