Introduction of JavaScript focus event example

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It's just a list here, and the usage is no different from the previous ones.

Trigger focus:

("Element") .focus ()

Triggers each matching element to get the focus event.

$("Element") .focus (function)

The event is triggered when it gets focus, either a mouse behavior or a behavior triggered by pressing the tab key navigation, and binding a handling method

Lose focus:

("Element") .blur ()

Triggers a losing focus event for each matching element.

$("Element") .blur (function)

The event is triggered when the element loses focus, either by mouse behavior or by pressing the tab key to leave, and binds a handler.

Change the focus:

("Element") .change ()

Triggers an event when each matching element changes.

$("Element") .change (function)

Bind a handler in the change event of each matching element.

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