Add support for hash prop

Author: taion

src/LinkContainer.js

@@ -25,12 +25,16 @@ export default class LinkContainer extends React.Component {
 
   render() {
     const {history} = this.context;
-    const {onlyActiveOnIndex, to, query, children, ...props} = this.props;
+    const {onlyActiveOnIndex, to, query, hash, children, ...props} =
+      this.props;
 
     delete props.state;
-    delete props.onClick;
+
     props.onClick = this.onClick;
     props.href = history.createHref(to, query);
+    if (hash) {
+      props.href += hash;
+    }
     props.active = history.isActive(to, query, onlyActiveOnIndex);
 
     return React.cloneElement(React.Children.only(children), props);
@@ -41,6 +45,7 @@ LinkContainer.propTypes = {
   onlyActiveOnIndex: React.PropTypes.bool.isRequired,
   to: React.PropTypes.string.isRequired,
   query: React.PropTypes.object,
+  hash: React.PropTypes.string,
   state: React.PropTypes.object,
   onClick: React.PropTypes.func,
   disabled: React.PropTypes.bool.isRequired,

tests/LinkContainer.spec.js

@@ -19,7 +19,7 @@ describe('LinkContainer', () => {
         class LinkWrapper extends React.Component {
           render() {
             return (
-              <LinkContainer to="/foo" query={{bar: 'baz'}}>
+              <LinkContainer to="/foo" query={{bar: 'baz'}} hash="#the-hash">
                 <Component>Foo</Component>
               </LinkContainer>
             );
@@ -35,7 +35,7 @@ describe('LinkContainer', () => {
         const anchor = ReactTestUtils.findRenderedDOMComponentWithTag(
           router, 'A'
         );
-        expect(anchor.getAttribute('href')).to.equal('/foo?bar=baz');
+        expect(anchor.getAttribute('href')).to.equal('/foo?bar=baz#the-hash');
       });
 
       it('should not add extra DOM nodes', () => {