Javascript handling Memory leak issue by v8 engine

Question

In Javascript, there is a memory leak if we remove event listeners on the parent DOM node, without removing those on child nodes explicitly.

Is that a bug in the V8 engine ?

Is there any specific reason why the V8 does not remove child references automatically ?

Answer 1

removeEventListener仅删除在其上调用它的节点上的事件侦听器