How state works in react [closed] - javascript

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If in my web page I have two components and each are having there own different state so now if i change the state of one component will it effect on second component also ?

No, each component only are reactive with his own state

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Make div stay active in any page on a website [closed]

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Is it possible to have a stay on the page regardless of where the users goes to within the website?
Example: https://youtu.be/T3f-MPPH4Co
content can be done by positioning within a specific item.
https://en.m.wikipedia.org/wiki/Single-page_application

is there any event page changed (angular2)? [closed]

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Is there any event of page changing?
What I need: if somebody change page need to do something, but not if he change page for page /terms (for example).
You can achieve this with lifecycle hooks. Implementing functions:
onDestroy() // navigating from component
onInit() // opening component

Angular js ui router animated transitions [closed]

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Is there a standard way to do animations in angular ui router transitions? I'm looking for sliding animations when UI-view changes.

how to detect an already set initial scale in a website using javascript? [closed]

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i want to change certain elements regarding their style by detecting the initial scale already used by the owner of the website.
Thanks
I found it my self,
var scale=Number((screen.width/window.innerWidth).toFixed(1));
scale has the required value!

Is this a memory leak of angular? [closed]

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At http://docs.angularjs.org, click back and forth between pages the DOM Node Count continues to go up and up. No dramtical drop when I click "collect garbage".
I have opened an issue: https://github.com/angular/angular.js/issues/4864

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