Interface Component

packages/core/src/metadata/directives.ts:544–672

 * @publicApi
 */
export interface Component extends Directive {
  /**
   * The change-detection strategy to use for this component.
   *
   * When a component is instantiated, Angular creates a change detector,
   * which is responsible for propagating the component's bindings.
   * The strategy is one of:
   * - `ChangeDetectionStrategy#OnPush` sets the strategy to `CheckOnce` (on demand).
   * - `ChangeDetectionStrategy#Eager` sets the strategy to `CheckAlways`.
   *
   * NOTE: OnPush is enabled by default.
   */
  changeDetection?: ChangeDetectionStrategy;

  /**
   * Defines the set of injectable objects that are visible to its view DOM children.
   * See [example](#injecting-a-class-with-a-view-provider).
   *
   */
  viewProviders?: Provider[];

  /**
   * The relative path or absolute URL of a template file for an Angular component.
   * If provided, do not supply an inline template using `template`.
   *
   */
  templateUrl?: string;

  /**
   * An inline template for an Angular component. If provided,
   * do not supply a template file using `templateUrl`.
   *
   */
  template?: string;

  /**
   * One relative path or an absolute URL for file containing a CSS stylesheet to use
   * in this component.
   */
  styleUrl?: string;

  /**
   * Relative paths or absolute URLs for files containing CSS stylesheets to use in this component.
   */
  styleUrls?: string[];

  /**
   * One or more inline CSS stylesheets to use
   * in this component.
   */
  styles?: string | string[];

  /**
   * One or more animation `trigger()` calls, containing
   * [`state()`](api/animations/state) and `transition()` definitions.
   * See the [Animations guide](guide/animations) and animations API documentation.
   *
   * @deprecated 20.2 Use `animate.enter` or `animate.leave` instead. Intent to remove in v23