How to use content filters in jQuery

This time I will bring you how to use the content filter in jQuery. What are the precautions when using the content filter in jQuery? Here are practical cases, let’s take a look.

The examples in this article describe the simple usage of content filters in jQuery. Share it with everyone for your reference, the details are as follows:

Introduction

The content filter is based on the text content contained in the DOM element and whether it contains Matching elements are filtered. There are 4 types of content filters: :contains(text), :empty, :has(selector) and :parent, as follows shown in the table.

Filter	Description	Example
contains(text)	Match elements that contain the given text	$("li:contains('DOM')") //Match li elements that contain "DOM" text content
:empty	Matches all empty elements that do not contain child elements or text	$("td:empty") //Match units that do not contain child elements or text Grid
:has(selector)	Matches elements containing elements matched by the selector	$("td:has(p)") //Match cells containing tags in the cells of the table
:parent	Match elements containing child elements or text	$("td: parent") //Match cells that are not empty, that is, the cell also includes sub-elements or text

Second Application

Apply the content filter to match cells that are empty, cells that are not empty, and cells that contain the specified text

Three codes

<script></script>

                                                                      

编号	祝福对象	祝福者	字条内容	发送时间
1	琦琦	妈妈	愿你健康快乐的成长！	2011-07-05 13:06:06
1	wgh	爸爸	愿你健康快乐的成长！	2011-07-05 13:06:06
1	花花	wgh	愿你健康快乐的成长！	2011-07-05 13:06:06
1	科科	wgh		2011-07-05 13:06:06

<script> $(document).ready(function() { $("td:parent").css("background-color","#E8F3D1"); //为不为空的单元格设置背景颜色 $("td:empty").html("暂无内容"); //为空的单元格添加默认内容 $("td:contains(&#39;wgh&#39;)").css("color","red"); //将含有文本wgh的单元格的文字颜色设置为红色 }); </script>

Four running results

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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