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  • Ahmed Elgendy thinks this is interesting:

: showAnswer is a handler, and yet it creates a new handler, reblur, in its code. Is that right?

A:

A: You’ve got it. You’ll actually see this fairly often in JavaScript. It’s perfectly normal to see a handler set up additional event handlers for various events. And this is the style of programming we were referring to in the beginning of the chapter: asynchronous programming. To create the image ...

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Cover of Head First JavaScript Programming

Note

A tip: an example of handlers that creates handlers?