Pro JavaScript for Web Apps pdf - EBook Free Download

CHAPTER 4 USING URL ROUTINGcrossroads.parse(location.hash.slice(1));});} else {hasher.initialized.add(crossroads.parse, crossroads);hasher.changed.add(crossroads.parse, crossroads);hasher.init();}});The selected item is: Storing the Application StateThe first set of changes in the listing stores the application state when the main application routematches a URL. By responding to the URL change, I am able to preserve the state whenever the userclicks one of the navigation elements or enters a URL directly. Here is the code that stores the state:......crossroads.addRoute("select/:item:", function(item) {if (!item) {item = "Apple";} else if (viewModel.items.indexOf(item)== -1) {viewModel.items.push(item);}if (viewModel.selectedItem() != item) {viewModel.selectedItem(item);}$('div.catSelectors').buttonset();if (Modernizr.history) {history.replaceState(viewModel.items(), document.title, location);}});...97www.it-ebooks.info