Traditional events and modern events in JavaScript

This article introduces the use of traditional events to simulate modern events, very simple and practical, the need for small partners can refer to.

As we all know, the modern event binding (attachevent) in IE has many problems compared with the standard of the AddEventListener.

For example: memory leaks, recurring events and triggers are flashback execution, and so on.

The following is a traditional event method to handle the binding of an encapsulated event:

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