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Why does the Node rely on event handlers?

Why does the Node rely on event handlers? Correct Answer APIs are asynchronous

For handling the spontaneous events occurring on the web page the event handlers are important. Because the APIs are asynchronous, Node relies on event handlers, which are often implemented using nested functions and closures.

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Branch, Loop and Node Analyses mcq question image
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Branch, Loop and Node Analyses mcq question image
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