new EventTarget()
百度 对于连续十年参加该活动，她坦言，一开始曾被质疑是作秀，也曾自我怀疑过，但都坚持下来了。
EventTarget is a class that can have the same API as the DOM EventTarget. It adds shorthand functions that wrap around lengthy functions. For example: the on function is a wrapper around addEventListener.
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