[wp-trac] [WordPress Trac] #60311: Editing interface prompts error

[WordPress Trac]

#60311: Editing interface prompts error
---------------------------+------------------------------
 Reporter:  chengjianping  |       Owner:  (none)
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:  Awaiting Review
Component:  General        |     Version:
 Severity:  normal         |  Resolution:
 Keywords:                 |     Focuses:
---------------------------+------------------------------

Comment (by ermiuyo):

 Replying to [comment:4 ermiuyo]:
 > Replying to [comment:3 ermiuyo]:
 > > Replying to [comment:2 ermiuyo]:
 > > > 1. The component tree has changed, but React still holds references
 to old nodes.
 > > > 2. A missing or incorrect key in a list causes React to misidentify
 elements.
 > > > 3. Conditional rendering removes elements unpredictably.
 > > > 4. Directly manipulating the DOM instead of relying on React’s
 virtual DOM.
 > > Make sure the parent component exists before inserting a child
 element. If using refs, validate them before modifying the DOM.
 > >
 > >
 > > {{{
 > > useEffect(() => {
 > >   if (parentRef.current) {
 > >     // Safe operations
 > >   }
 > > }, []);
 > >
 > > }}}
 >
 > If the component is being unmounted or re-rendered unexpectedly, React
 may lose track of the parent-child relationship. This can happen when
 you're using React's lifecycle methods incorrectly or when elements are
 conditionally rendered based on state changes.
 >
 > Fix:
 > Ensure that the component is mounted correctly before making any
 updates. Use useEffect() with proper dependencies to track changes and
 handle side effects, like this:
 >
 >
 > {{{
 > useEffect(() => {
 >   if (parentRef.current) {
 >     // Safe DOM manipulations when the component is mounted
 >   }
 > }, [someDependency]);  // Ensure that the dependency array is correct
 >
 >
 > }}}

 If you're using third-party libraries or custom implementations for DOM
 manipulations, they might interfere with React's DOM reconciliation. In
 some cases, these libraries might attempt to modify the DOM directly,
 leading to inconsistencies in React’s virtual DOM.

 Fix:
 If the issue is due to external libraries (like a jQuery plugin or custom
 scripts), try to ensure that those libraries are integrated in a way that
 doesn’t conflict with React. If necessary, use useEffect() to interact
 with these libraries after React has completed its rendering:


 {{{
 useEffect(() => {
   // Initialize third-party library after React renders the component
   someLibrary.initialize();
 }, []);

 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/60311#comment:5>
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