mutation-observer | Repository for the medium article : Js : MutationObserver | GraphQL library
kandi X-RAY | mutation-observer Summary
kandi X-RAY | mutation-observer Summary
Repository for the medium article: Js: MutationObserver
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Top functions reviewed by kandi - BETA
- Callback to handle mutation changes
- Start mutation observer
- Start mutation observer
- Listen for attributes changes .
- List changes handler .
- Create added node
- Change the color value of the HTML text
- Updates the number of nodes in the DOM .
mutation-observer Key Features
mutation-observer Examples and Code Snippets
Community Discussions
Trending Discussions on mutation-observer
QUESTION
ANSWER
Answered 2021-Oct-30 at 19:25For Twitter, MutationObserver is the way to go, and for how to use it, I prefer this Mozilla guide.
To get is working correctly, note the syntax: here in registering the MutationObserver, it says watch the entire body and descendants, and call function appendCustomNode
when change occurs.
QUESTION
I'm developing chrome extension MV3 which hide article.
MutationObserver hide article without flickering at main frame.
For example, below code hides odd's article at Reddit when there's new article by scrolling down.
...ANSWER
Answered 2021-Aug-25 at 13:39Instead of MutationObserver in the main document you can detect the moment the iframe is navigated inside, then add a MutationObserver for the iframe's contents.
- The
checkFrameReady
listener will run after iframe's URL changes, but before its navigation is complete. - During this time span, DOMException will keep occurring inside the listener when it tries to start the observer.
- The listener will repeat itself via requestAnimationFrame until the iframe finally finishes its navigation to the new URL. At that moment the iframe becomes same-origin to the main page and our code will be able to access the contents of the iframe and start the observer.
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