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Prefer using onPush change detection strategy

Rule id​

prefer-on-push-cd-strategy

Severity​

Warning

Description​

Prefer setting changeDetection: ChangeDetectionStrategy.OnPush in Angular @Component annotations. OnPush strategy should be used as the default because using Default strategy leads to performance issues.

Example​

Bad:

@Component(
  selector: 'component-selector',
  templateUrl: 'component.html',
  styleUrls: ['component.css'],
  directives: <Object>[
    coreDirectives,
  ],
)
class Component {
}

Good:

@Component(
  selector: 'component-selector',
  templateUrl: 'component.html',
  styleUrls: ['component.css'],
  changeDetection: ChangeDetectionStrategy.OnPush,
  directives: <Object>[
    coreDirectives,
  ],
)
class Component {
}