What is the reason behind deprecating the DOMSubtreeModified event and what alternative should be used in its place?
What is the reason behind deprecating the DOMSubtreeModified event and what alternative should be used in its place?
As you continue scrolling, a warning pops up:
Beware! The use of the
MutationEventinterface from DOM Level 2 Events is not fully implemented across different web browsers, and it poses performance and implementation challenges. A newer specification is being developed to address the issues that mutation events tackle but in a more efficient way. Therefore, while this specification provides information on mutation events for historical purposes, it discourages the use of both theMutationEventandMutationNameEventinterfaces.
The recommended replacement API is mutation observers, defined thoroughly in the DOM Living Standard that surpasses the complexities of previous DOM levels.
In my opinion, the solution lies in utilizing mutation observers: https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver
var targetToObserve = {childList: true, attributes: true, subtree: true, attributeOldValue: true, attributeFilter: ['class', 'style']};
var observer = new MutationObserver(function(records) {
$.each(records, function(i, record) {
if (record.type === 'childList') {
if (record.addedNodes.length > 0) {
// Action to be taken on node addition
}
else if (record.removedNodes.length > 0) {
// Action to be taken on node removal
}
}
else if (record.type === 'attributes') {
if (record.attributeName === 'class') {
// Action to be taken on class change
}
}
});
});
observer.observe(document.body, targetToObserve);
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