Strong html

tools/dom/templates/html/impl/impl_Element.darttemplate

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of $LIBRARYNAME;
 
 class _ChildrenElementList extends ListBase<Element>
     implements NodeListWrapper {
   // Raw Element.
   final Element _element;
@@ skipping 53 matching lines @@
   }
 
   void removeWhere(bool test(Element element)) {
     _filter(test, false);
   }
 
   void retainWhere(bool test(Element element)) {
     _filter(test, true);
   }
 
-  void _filter(bool test(var element), bool retainMatching) {
+  void _filter(bool test(Element element), bool retainMatching) {
     var removed;
     if (retainMatching) {
       removed = _element.children.where((e) => !test(e));
     } else {
       removed = _element.children.where(test);
     }
     for (var e in removed) e.remove();
   }
 
   void setRange(int start, int end, Iterable<Element> iterable,
@@ skipping 501 matching lines @@
    *     item.text = 'Something';
    *     document.body.children.add(item) // Item is now displayed on the page.
    *     for (var element in document.body.children) {
    *       element.style.background = 'red'; // Turns every child of body red.
    *     }
    */
   List<Element> get children => new _ChildrenElementList._wrap(this);
 
   set children(List<Element> value) {
     // Copy list first since we don't want liveness during iteration.
-    List copy = new List.from(value);
+    var copy = value.toList();
     var children = this.children;
     children.clear();
     children.addAll(copy);
   }
 
   /**
    * Finds all descendent elements of this element that match the specified
    * group of selectors.
    *
    * [selectors] should be a string using CSS selector syntax.
@@ skipping 214 matching lines @@
    * for the transition, or a Map with fields corresponding to those
    * of the [Timing] object.
   **/
   @Experimental()
   @SupportedBrowser(SupportedBrowser.CHROME, '36')
   Animation animate(Iterable<Map<String, dynamic>> frames, [timing]) {
     if (frames is! Iterable || !(frames.every((x) => x is Map))) {
       throw new ArgumentError("The frames parameter should be a List of Maps "
           "with frame information");
     }
-    var convertedFrames = frames;
-    if (convertedFrames is Iterable) {
+    var convertedFrames;
+    if (frames is Iterable) {
 $if DART2JS
       convertedFrames = frames.map(convertDartToNative_Dictionary).toList();
 $else
       convertedFrames = convertDartToNative_List(
           frames.map(convertDartToNative_Dictionary).toList());
 $endif
+    } else {
+      convertedFrames = frames;
     }
-    var convertedTiming = timing;
-    if (convertedTiming is Map) {
-      convertedTiming = convertDartToNative_Dictionary(convertedTiming);
-    }
+    var convertedTiming = timing is Map ? convertDartToNative_Dictionary(timing) : timing;
     return convertedTiming == null
       ? _animate(convertedFrames)
       : _animate(convertedFrames, convertedTiming);
   }
 
 $if DART2JS
   @DomName('Element.animate')
   @JSName('animate')
   @Experimental() // untriaged
   Animation _animate(Object effect, [timing]) native;
@@ skipping 816 matching lines @@
   const ScrollAlignment._internal(this._value);
   toString() => 'ScrollAlignment.$_value';
 
   /// Attempt to align the element to the top of the scrollable area.
   static const TOP = const ScrollAlignment._internal('TOP');
   /// Attempt to center the element in the scrollable area.
   static const CENTER = const ScrollAlignment._internal('CENTER');
   /// Attempt to align the element to the bottom of the scrollable area.
   static const BOTTOM = const ScrollAlignment._internal('BOTTOM');
 }