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twerske/my-directive.ts

Created May 13, 2022 20:24
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Tree-shakeable error messages
Raw
my-directive.ts
@Component({...})
class MyComponent {}
@Directive({...})
class MyDirective extends MyComponent {} // throws an error at runtime
// Before v14 the error is a string:
> Directives cannot inherit Components. Directive MyDirective is attempting to extend component MyComponent.
// Since v14 the error code makes this tree-shakeable:
> NG0903: Directives cannot inherit Components. Directive MyDirective is attempting to extend component MyComponent.
// v14 production bundles preserve the error code, tree-shaking strings and making the bundle XX smaller:
> NG0903
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