下面的代码检查,如果元素隐藏在jquery或可见

// You can also do this...

        $("button").click(function(){
            // show hide paragraph on button click
            $("p").toggle("slow", function(){
                // check paragraph once toggle effect is completed
                if($("p").is(":visible")){
                    alert("The paragraph  is visible.");
                } else{
                    alert("The paragraph  is hidden.");
                }
            });
        });

.is(":not(':hidden')") /*if shown*/

content.style.display != 'none'

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下面的代码检查,如果元素隐藏在jquery或可见

// You can also do this...

        $("button").click(function(){
            // show hide paragraph on button click
            $("p").toggle("slow", function(){
                // check paragraph once toggle effect is completed
                if($("p").is(":visible")){
                    alert("The paragraph  is visible.");
                } else{
                    alert("The paragraph  is hidden.");
                }
            });
        });

使用任何可见选择器或隐藏选择器检查粘度:

: 可见选择器 - jquery (“ : 可见”) 使用 : 隐藏选择器 - jquery (“ : 隐藏” )

使用.toggle () - 显示和隐藏元素

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if($('#id_element').is(":visible")){
   alert('shown');
}else{
   alert('hidden');
}