Why can the click event of the created A tag be triggered with the event created by document.createEvent (), but not with
with new Even ()?
Why can the click event of the created A tag be triggered with the event created by document.createEvent (), but not with
with new Even ()?
new Even () is new Event () miswritten? The method of
createEvent (). It can be used to create a new event, but it has been abandoned. 
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