Added Element.appendTo() and Element.prependTo()

src/svg.js

@@ -1642,6 +1642,20 @@ function arrayFirstValue(arr) {
         el.paper = this.paper;
         return this;
     };
+    /*\
+     * Element.appendTo
+     [ method ]
+     **
+     * Appends the current element to the given one
+     **
+     - el (Element) parent element to append to
+     = (Element) the child element
+    \*/
+    elproto.appendTo = function (el) {
+        el = wrap(el);
+        el.append(this);
+        return this;
+    };
     /*\
      * Element.prepend
      [ method ]
@@ -1657,6 +1671,20 @@ function arrayFirstValue(arr) {
         el.paper = this.paper;
         return this;
     };
+    /*\
+     * Element.prependTo
+     [ method ]
+     **
+     * Prepends the current element to the given one
+     **
+     - el (Element) parent element to prepend to
+     = (Element) the child element
+    \*/
+    elproto.prependTo = function (el) {
+        el = wrap(el);
+        el.prepend(this);
+        return this;
+    };
     /*\
      * Element.before
      [ method ]

test/element.js

@@ -51,6 +51,13 @@ describe("Element methods", function () {
         expect(rect2.node.parentNode).to.be(s.node);
         expect(result).to.be(s);
     });
+    it("Element.appendTo", function() {
+        var rect = s.rect(10, 20, 30, 40);
+        var result = rect.appendTo(s);
+        expect(rect.node.parentNode).to.be(s.node);
+        expect(s.node.lastChild).to.be(rect.node);
+        expect(result).to.be(rect);
+    });
     it("Element.after", function() {
         var circle = s.circle(10, 20, 30);
         var rect = s.rect(10, 20, 30, 40);
@@ -70,6 +77,18 @@ describe("Element methods", function () {
         expect(group.node.firstChild).to.be(circle.node);
         expect(result).to.be(group);
     });
+    it("Element.prependTo", function() {
+        var rect = s.rect(10, 20, 30, 40);
+        var circle = s.circle(10, 20, 30);
+        var group = s.group();
+        s.append(group);
+        var result = rect.prependTo(group);
+        expect(group.node.firstChild).to.be(rect.node);
+        expect(result).to.be(rect);
+        result = circle.prependTo(group);
+        expect(group.node.firstChild).to.be(circle.node);
+        expect(result).to.be(circle);
+    });
     it("Element.insertAfter", function() {
         var circle = s.circle(10, 20, 30);
         var rect = s.rect(10, 20, 30, 40);