Simple usage example of visibility filter in jQuery

This article mainly introduces the simple usage of the visibility filter in jQuery, and briefly analyzes the principles and related usage techniques of the visibility filter in jQuery in the form of examples. Friends in need can refer to this article

The example describes the simple usage of visibility filter in jQuery. Share it with everyone for your reference, the details are as follows:

1 Introduction

There are two visible states of elements, namely hidden state and displayed state state. Visibility filters use the visible status of elements to match elements. Therefore, there are two types of visibility filters, one is the :visible filter that matches all visible elements, and the other is the :hidden filter that matches all invisible elements.

When applying the :hidden filter, elements whose display attribute is none and the type attribute of the input element is hidden will be matched.

Two applications

Get the values ​​of hidden and displayed input elements on the page

Three Code

<script language="javascript" src="JS/jquery-3.1.1.min.js"></script>
<input type="text" value="显示的input元素">
<input type="text" value="我是不显示的input元素" style="display:none">
<input type="hidden" value="我是隐藏域">
<script type="text/javascript">
   $(document).ready(function() {
      var visibleVal = $("input:visible").val();     //取得显示的input的值
      var hiddenVal1 = $("input:hidden:eq(0)").val();   //取得隐藏的input的值
      var hiddenVal2 = $("input:hidden:eq(1)").val();   //取得隐藏的input的值
      alert(visibleVal+"\n\r"+hiddenVal1+"\n\r"+hiddenVal2);  //弹出取得的信息
   });
</script>

Four running effects

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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