How to determine whether an element is hidden in jquery

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Release: 2023-01-04 09:37:59
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Jquery method to determine whether an element is hidden: 1. Use CSS attributes, the code is [var display =$('#id').css('display');]; 2. Use jquery's built-in selector , the code is [if($("#test").is(":hidden")].

How to determine whether an element is hidden in jquery

The operating environment of this tutorial: windows7 system, jquery3 .2.1 version, DELL G3 computer.

Recommendation:jquery video tutorial

jquery method to determine whether an element is hidden:

1: Use CSS attributes

The code is as follows:

var display =$('#id').css('display'); if(display == 'none'){ alert("被你发现了,我是隐藏的啦!"); }
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2: Use jquery built-in selector

Assume our page There is such a label,

The code is as follows:

仅仅是测试所用

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Then, we can use the following statement to determine whether the label with the id "test" is hidden:

The code is as follows:

if($("#test").is(":hidden")){...} //前提是已经将jQuery的库导进来了
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In this way, we can easily determine whether an element is hidden and set animations according to its status. For example:

The code is as follows:

if($("#test").is(":hidden")){ $("#test").show(); //如果元素为隐藏,则将它显现 }else{ $("#test").hide(); //如果元素为显现,则将其隐藏 }
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3 : jQuery determines whether the element is displayed or hidden

The code is as follows:

var node=$('#id');
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The first way of writing

The code is as follows:

if(node.is(':hidden')){  //如果node是隐藏的则显示node元素,否则隐藏   node.show();  }else{   node.hide(); }
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The code for the second way of writing

is as follows:

if(!node.is(':visible')){  //如果node是隐藏的则显示node元素,否则隐藏   node.show();  }else{   node.hide(); } if(node.is(':visible')){  //如果node是显示的则隐藏node元素,否则显示   node.hide(); }else{   node.show(); }
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