Category: Lightning

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” →
Lightning

Controller in Lightning Bundle

Akhil KulkarniLeave a comment

Controller handle client-side events in lightning bundle. It’s a JavaScript resource that defines the functions for all of the component’s actions. A client-side controller is a JavaScript object in object-literal notation containing a map of name-value pairs. Function can represent an action event. Client-side controllers are surrounded by parentheses and curly braces. Separate action handlers with commas.

Continue reading “Controller in Lightning Bundle” →