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Questions tagged [lifecycle-hook]

42 questions
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Do we need afterViewInit lifecycle hook anymore in angular?

We know that the afterViewInit lifecycle hook gets triggered once when a component finally finishes the initialization of it's view. Thus if any component has to work with it's viewChild, this lifecycle hook get's it's relevance to be invoked inside…
Rezaul Karim
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vue created doesn´t fire when a new element is inserted

I´m new to vue, and struggle with a - for me - strange behaviour. I expected that every time a new "singleMessage" is inserted in the dom, the functions in "created" will be executed. But it doesn´t. My goal is that every time a new single message…
Daniel Hüpenbecker
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How can I remove manually added event listeners on beforeDestory hook of one component before redirecting to any another component, in Vuejs2?

I want to know the concept of the below thing- I have created one component and set up its respected event listeners. Now, I want to remove those listeners on this component's beforeDestroy hook before redirecting to another route that will create…
Neha Soni
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AWS Autoscaling delay launch and terminate

I have the following scenario and need to know the best way to achieve it in AWS. I have an EC2 autoscaling group which will initially be set to 0, after a manually run process an SSM document is triggered which sets the ASG to 3, however I need…
Nexus490
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nativescript-vue cannot read data property in lifecycle hooks

im reading nfc tags through my created hook and I would like to pass them to my data properties. It shows me that I cannot read or set the property 'currentArticle'. I tried suggestions like let self = this self.currentArticle but it did not…
Ifloop
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get PreStop lifecycle hook execution results

i'm trying to find out how to get preStop execution result for debugging purposes. I'm creating a pod (not part of a deployment) with the following lifecycle definition: terminationGracePeriodSeconds: 60 lifecycle: preStop: …
Lior Baber
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adding class to an element in Vuejs component modifies all instances of that component

I wrote a mounted function to conditionally add and remove classes from an element in a Vuejs component. It appears that the function adds the class to the element in not only this instance of the component but in all instances of that component.…
GNG
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"ExpressionChangedAfterItHasBeenCheckedError"; I don't understand what type of operations which are inside the lifecycle hooks, make it to be thrown

It's important to me due to certain reasons, to understand how Angular works; well; One thing that I can't understand, is the error that's mentioned in the title, and what things I'm prohibited by Angular to do inside the lifecycle hooks (if there…
Idan Steinberg
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service that runs at angular app instance creation regardless of inital router endpoint

I have an authentication service that I want run on app instance creation. Im not sure how to do this. One of the many things that this service will do is check if localstorage contains a JWT (I am using a angular app so I am protected from xss)…
user9487981
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lifecycle hooks of input population from sibling component angular2

I have two siblings component like below when user click on…
Paridokht
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Calling detectChanges() inside Angular2 lifecycle hooks?

What I know, is that we call detectChanges() to trigger local change detection checks. I have seen some code that detectChanges() is called inside ngOnChanges(change) hook and I was wondering why would someone want to do something like this? I mean,…
koninos
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Angular Lifecyclehook ngOnChanges

I want to update a variable each time after it changes in angular view. How can it be achieved in angular without using @input decorator?
sabin shrestha
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