You create a SharePoint action to add custom buttons to the ribbon or settings pages. Actions can be created in Visual Studio and consist of a single Elements file. Multiple actions can be deployed with just one file. In typical SharePoint style, a web-level feature is used to install the action(s).
Now that you know how to write custom AngularJS directives and how AngularJS helps validate forms, let's move on to the next great feature. AngularJS filters make it easy to display a subset of items from a collection. They are used with directives like ng-options and ng-repeat. Read this guide to learn how to decipher their syntax and even write your own.
Much of Angular’s built-in functionality is provided by modular slices of code called directives. You can write custom directives to perform form validation, to minimize code repetition, to attach events to elements, to inject markup into templates, and more. Directives are so powerful that their usefulness is limited only by how well you understand them. Get more out of Angular by learning how to write custom directives today.
With AngularJS, you can apply a wide variety of checks and effects to form elements. This blog will go over some of the basics. Not only does Angular allow you to validate user input using built-in and custom directives, but it also automatically furnishes your elements with helpful CSS classes.
Angular will help you take advantage of the many basic validation options included in HTML5, such as the required attribute and additional input types like email and URL. Angular extends the available options with their own directives like ng-maxlength and ng-minlength.