Lightning

Design in Lightning Bundle

Akhil KulkarniLeave a comment

In design section you can control which attributes are exposed to builder tools like the Lightning App Builder, Experience Builder, or Flow Builder. A design resource lives in the same folder as yours .cmp resource, and describes the design-time behavior of the Aura component—information that visual tools need to display the component in a page or app.

<design:component label="Hello World">
    <design:attribute name="subject" label="Subject" description="Name of the person you want to greet" />
    <design:attribute name="greeting" label="Greeting" />
</design:component>
Continue reading “Design in Lightning Bundle” →
Lightning

Renderer in Lightning Bundle

Akhil KulkarniLeave a comment

Renderer in Client-side is to override default rendering for a component. You can consider what data should render on load or on reload. The framework’s rendering service takes in-memory component state and creates and manages the DOM elements owned by the component. If you want to modify DOM elements created by the framework for a component, you can modify the DOM elements in the component’s renderer. Otherwise, the framework will override your changes when the component is rerendered.

The base component in the framework is aura:component. Every component extends this base component.

This renderer has base implementations for the four phases of the rendering and rerendering cycles:

  • render()
  • rerender()
  • afterRender()
  • unrender()
Continue reading “Renderer in Lightning Bundle” →
Lightning

Documentation in Lightning Bundle

Akhil KulkarniLeave a comment

Documentation helps developers use your components to develop their apps more effectively. You can provide interactive examples, documentation, and specification descriptions for

  1. Component
  2. Event
  3. Interface.
Continue reading “Documentation in Lightning Bundle” →
Lightning

Style in Lightning Bundle

Akhil KulkarniLeave a comment

Sometimes there will be scenario where you need to define specific set of style to the tags that are used in component. This is similar to how style tags are defined in normal HTML pages or Visualforce pages. Only difference is style name definition will start with .THIS keyword. You can also define specific style tags for other devices like, mobile or tablet etc using @media.

Continue reading “Style in Lightning Bundle” →
Lightning

Helper in Lightning Bundle

Akhil Kulkarni1 Comment

Helper in lightning bundle is similar to controller where you write client-side javascript methods. These methods are more like reuseable methods which can be called from any controller method.

  • Helper is similar to controller but helper does not handle events.
  • Helper can be used to write reusable Javascript methods and these can be called from Controller section.
  • Helper functions also enable specialization of tasks, such as processing data and queueing server-side actions.
  • Helper methods are local to Component bundle.
  • Helper methods can be called from any controller javascript methods.
  • Declaring a helper method is similar to controller javascript method.
  • A helper function can pass in any arguments required by the function, such as the component it belongs to, a callback, or any other objects.
  • You can call a helper method from another helper method using this. operation.
Continue reading “Helper in Lightning Bundle” →