How to determine whether an object has focus in jquery

青灯夜游
Release: 2023-01-04 09:37:50
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In jquery, you can judge whether the specified object has gained focus by judging whether "$(specified object).is(":focus")" is equal to true; the specific syntax format is "if($("selector ").is(":focus")==true){//Get focus}".

How to determine whether an object has focus in jquery

The operating environment of this tutorial: windows7 system, jquery3.3.1 version, Dell G3 computer.

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Instance of jquery judging whether the object has gained focus

 
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Description:

  • is() method is used to check whether the selected element matches the selector. The :focus selector selects the focused element.

  • When the object has focus, $(selector).is(":focus") will return true, otherwise it will return false.

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