How do you handle non-bubbling events with delegation in JavaScript?
Use capturing phase (addEventListener with true) or use bubbling alternatives: focusin/focusout instead of focus/blur, mouseover/mouseout instead of mouseenter/mouseleave. These alternatives bubble and work with delegation.
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More FAQs in Event Delegation Best Practices
Use closest() for nested clicks, check e.target before handling, choose the right parent (closest one containing all children), do not overuse stopPropagation (it breaks delegation), and be aware of non-bubbling events.
Because stopPropagation prevents the event from bubbling to the parent, which breaks delegation. The parent listener never receives the event. Only use stopPropagation when you explicitly want to prevent delegation.
Choose the closest parent that contains all the children you want to handle. Too high (document) means unnecessary checks. Too low (a wrapper div) may not contain all children. The ideal is the direct parent (ul for li, table for tr).
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