What's the deal with Angular Lifecycle hooks?

Can Angular framework call lifecycle hooks implicitly if they are not implemented explicitly?

For example, if @input is not used in a component, will ngOnChanges be triggered by Angular as it executes before ngOnInit? And if @input is used but ngOnChanges is not written, will it still be called implicitly? The same question applies to other hooks as well.

Thank you in advance.

Answer №1

If you neglect to include a particular lifecycle hook, Angular will have nothing to execute. There will be no function called when the specified event occurs.

However, this does not impede Angular from carrying out its duties. Components will still initialize regardless of whether or not you define an ngOnInit function; @inputs will continue to update their values as directed by a parent component even if you do not implement an ngOnChanges, and so on.

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