Added prepend() to jqLite

mhevery · mhevery · commit 89e001b18a4f · 2011-06-08T15:21:33.000-07:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,10 @@
 <a name="0.9.17"><a/>
 # <angular/> 0.9.17 vegetable-reanimation (in progress) #
 
+### New Features
+- Added prepend() to jqLite
+
+
 ### Bug Fixes
 - Number filter would return incorrect value when fractional part had leading zeros.
 
diff --git a/src/jqLite.js b/src/jqLite.js
@@ -408,6 +408,20 @@ forEach({
     });
   },
 
+  prepend: function(element, node) {
+    if (element.nodeType === 1) {
+      var index = element.firstChild;
+      forEach(new JQLite(node), function(child){
+        if (index) {
+          element.insertBefore(child, index);
+        } else {
+          element.appendChild(child);
+          index = child;
+        }
+      });
+    }
+  },
+
   remove: function(element) {
     JQLiteDealoc(element);
     var parent = element.parentNode;
diff --git a/test/jqLiteSpec.js b/test/jqLiteSpec.js
@@ -380,6 +380,24 @@ describe('jqLite', function(){
     });
   });
 
+  describe('prepend', function(){
+    it('should prepend to empty', function(){
+      var root = jqLite('<div>');
+      expect(root.prepend('<span>abc</span>')).toEqual(root);
+      expect(root.html().toLowerCase()).toEqual('<span>abc</span>');
+    });
+    it('should prepend to content', function(){
+      var root = jqLite('<div>text</div>');
+      expect(root.prepend('<span>abc</span>')).toEqual(root);
+      expect(root.html().toLowerCase()).toEqual('<span>abc</span>text');
+    });
+    it('should prepend text to content', function(){
+      var root = jqLite('<div>text</div>');
+      expect(root.prepend('abc')).toEqual(root);
+      expect(root.html().toLowerCase()).toEqual('abctext');
+    });
+  });
+
 
   describe('remove', function(){
     it('should remove', function(){
