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The events that are emulated by the jQuery library are _________

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The events that are emulated by the jQuery library are _________

(a) focusarea and focusover

(b) focusall and focusnone

(c) focusdown and focusup

(d) focusin and focusout

This question was addressed to me in exam.

This intriguing question originated from Text Events topic in chapter Document Object Model and Event Handling in Javascript of JavaScript

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Correct choice is (b) focusall and focusnone

Easy explanation: The jQuery library emulates focusin and focusout events for browsers that do not support them. The focusin and focusout events bubble, the focus and blur events doesn’t. That means that you can use the focusin and focusout on the parent element of a form field.

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