Toogle class in angular

You can follow this link for more details & example -
http://tutorialsplane.com/angularjs-toggle-class-using-ng-class/

Add icon to dropdown bootstrap

Click here to read full about adding the ICON to dropdown - http://tutorialsplane.com/add-icon-to-bootstrap-dropdown/

Html5 Date Picker Example

Html5 readymade datepicker. You can use it quickly

- http://tutorialsplane.com/html5-date-picker/

Confirm Delete Modal Dialog in BootStrap

http://tutorialsplane.com/confirm-delete-modal-dialog-in-bootstrap/

How to Change Element class JavaScript ?

You can use className attribute as below -
http://tutorialsplane.com/change-element-class-using-javascript/

Magento Create Custom Helper

Here is good example how to create custom helper in magento. It is very easy follow the url to learn more-
http://tutorialsplane.com/magento-create-helper/

Ionic side menus example

Read more about Ionic side menus example http://tutorialsplane.com/ionic-side-menus/