A Better API for the Intersection and Mutation Observers | CSS-Tricks
Briefly

The article presents a streamlined approach to using the MutationObserver API, reducing complexity while maintaining functionality. It showcases how to implement a mutationObserver function that allows developers to easily switch between callback and event listener patterns. While the API retains simplicity similar to the ResizeObserver, the article notes that it features a single disconnect method for ceasing observations, along with a takeRecords method that further enhances its usability. This approach makes managing DOM mutations much more efficient and user-friendly.
The MutationObserver API can be simplified remarkably with a refactored function that allows for both callback patterns and event listener patterns for easier usage.
In comparison to the ResizeObserver, the MutationObserver offers a single disconnect method to stop observing, accompanied by a useful takeRecords method for processing observed changes.
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