Manipulating `body` element in React [closed] - javascript

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Is it advisable to manipulate the parent of the DOM that is body element manually in React just like we do in vanilla JS?
Like is it good practice to do like this because here I am not manually manipulating DOM, but instead manipulating it parent element?
document.body.style.overflow = "hidden"

In my experience: It's ok to do this.
Often this sort of thing is done when opening Modals (like Bootstrap)
It's a valid thing to do.

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use of jquery siblings for multiple elements [closed]

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Can I use multiple different elements with inside siblings() in jquery?
and what would be the best practice in jquery to select sibling and can you also please explain why?
Yes. You can put in parentheses of the siblings the types of sibling elements you want, for example:
$("div").siblings("h2, p")

Is it a good practice to be a click function in the same tag as ngFor? Angular and JS [closed]

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I have a table and tr row.
Is it a good practice for my `Click` event to be the same tag as `*ngFor`? If it's not a good practice, what can I do to improve the code?
Yes, this is no problem, or we can use routerLink instead of onClick
[routerLink]="['./view', user.id]"
It's okay to have the click functionality on the ngFor tag itself. Because you're sending only the user and not the whole array.
Since u used async pipe, am assuming your array is an observable. Just make sure your observable doesn't cause any issues.

What do you call JS-generated HTML that's not yet on the DOM? [closed]

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I never know how to refer to content that is generated but not yet on the DOM. What do you call that? I used to think it was called the Shadow DOM, but I realized I was wrong after reading the W3C documentation on Shadow DOMs.
If you are referring to the string of HTML code, that's just a HTML string.
If you are referring to DOM elements that are created but not yet appended, those are called detached nodes (also when they have been removed from the DOM but are still referenced from elsewhere).

Change Text in IFrame without JQuery [closed]

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Weave: http://kodeweave.sourceforge.net/editor/#f6d9a54288f17fb68a8b234ec364dc41
I love JQuery, I do, but just for fun I'd like to learn how to write the following in pure/vanilla JS.
$("iframe").contents().find("<style>").html(cssEditor.value))
Something like this should work:
document
.getElementsByTagName('iframe')[0]
.contentDocument
.getElementsByTagName('style')[0]
.innerHTML = cssEditor.value;
Use the contentDocument property of the <iframe> DOM object to get the inner document.
You can then call normal methods on it like querySelector.

checking javascript hooks and calls [closed]

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Is there a way that you can check the javascript used on an html element ? ie. if my javascript was in an external js script would there be a way to check which part of the js realted to that html object, in the same way you can use firebug to check which css elements are attached to the html ?
There is also a very cool plugin that will help you in this case.
Here is the live DEMO

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