Jquery operates table columns and sorts tables-JS Tutorial-php.cn

This time I will bring you Jquery to operate table columns and sort tables. What are the precautions for Jquery to operate table columns and sort tables? The following is a practical case, let's take a look.

The main idea of this implementation is: get the column number of the header cell clicked by the mouse, traverse the data rows, get the html in each , and get the html under each tag Correspond to the content in the tag of the obtained column number, and obtain the type attribute value of the tag. Friends who need it can learn about it

There are many Jquery plug-ins that sort tables on the front end , the function is also very powerful. For example, Jquery Data Tables is quite powerful in processing tables. It can sort, search, paging and other operations on tables, but I have not carefully studied its implementation principle.

In order to better understand the principle of sorting tables on the front end, and to further learn Jquery, I decided to use Jquery to implement a small function of sorting tables.
The main idea of this implementation is: get the column number of the table header cell clicked by the mouse, traverse the data rows, get the html in each , and get the corresponding information under each label. The content in the tag of the column number is obtained, and the type attribute value of the tag is obtained, and the html of , the content of and the type attribute value of are obtained and spliced into a string and add it to the array array, then empty all the HTML in the table , use different methods to compare the contents of according to the different type attribute values, and compare the array array based on the comparison results. Sort, and then reassign the sorted array elements to the empty . If the column has already been sorted, invert the array directly. Three types of sorting rules are provided: numerical, string, and IP address. The string type sorting rule uses the localeCompare method of JavaScript, which supports the sorting of Chinese character strings. Unfortunately, this method is not compatible with Google Chrome. Therefore, the sorting results of Chinese character strings on Google Chrome will be incorrect.

HTML code list：

View Code 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<title> 表格排序 </title> 
<meta name="Generator" content="EditPlus"> 
<meta name="Author" content="tschengbin"> 
<meta name="Keywords" content="jquery tableSort"> 
<meta name="Description" content=""> 
<script type="text/javascript" src="jquery-1.8.3.min.js"></script> 
<script type="text/javascript" src="tableSort.js"></script> 
<style type="text/css"> 
p{ 
width: 1024px; 
margin: 0 auto;/*p相对屏幕左右居中*/ 
} 
table{ 
border: solid 1px #666; 
border-collapse: collapse; 
width: 100%; 
cursor: default; 
} 
tr{ 
border: solid 1px #666; 
height: 30px; 
} 
table thead tr{ 
background-color: #ccc; 
} 
td{ 
border: solid 1px #666; 
} 
th{ 
border: solid 1px #666; 
text-align: center; 
cursor: pointer; 
} 
.sequence{ 
text-align: center; 
} 
.hover{ 
background-color: #3399FF; 
} 
</style> 
</head> 
<body> 
<p> 
<table id="tableSort"> 
<thead> 
<tr> 
<th type="number">序号</th> 
<th type="string">书名</th> 
<th type="number">价格（元）</th> 
<th type="string">出版时间</th> 
<th type="number">印刷量（册）</th> 
<th type="ip">IP</th> 
</tr> 
</thead> 
<tbody> 
<tr class="hover"> 
<td class="sequence">1</td> 
<td>狼图腾</td> 
<td>29.80</td> 
<td>2009-10</td> 
<td>50000</td> 
<td>192.168.1.125</td> 
</tr> 
<tr> 
<td class="sequence">2</td> 
<td>孝心不能等待</td> 
<td>29.80</td> 
<td>2009-09</td> 
<td>800</td> 
<td>192.68.1.125</td> 
</tr> 
<tr> 
<td class="sequence">3</td> 
<td>藏地密码2</td> 
<td>28.00</td> 
<td>2008-10</td> 
<td></td> 
<td>192.102.0.12</td> 
</tr> 
<tr> 
<td class="sequence">4</td> 
<td>藏地密码1</td> 
<td>24.80</td> 
<td>2008-10</td> 
<td></td> 
<td>215.34.126.10</td> 
</tr> 
<tr> 
<td class="sequence">5</td> 
<td>设计模式之禅</td> 
<td>69.00</td> 
<td>2011-12</td> 
<td></td> 
<td>192.168.1.5</td> 
</tr> 
<tr> 
<td class="sequence">6</td> 
<td>轻量级 Java EE 企业应用实战</td> 
<td>99.00</td> 
<td>2012-04</td> 
<td>5000</td> 
<td>192.358.1.125</td> 
</tr> 
<tr> 
<td class="sequence">7</td> 
<td>Java 开发实战经典</td> 
<td>79.80</td> 
<td>2012-01</td> 
<td>2000</td> 
<td>192.168.1.25</td> 
</tr> 
<tr> 
<td class="sequence" onclick="sortArray()">8</td> 
<td>Java Web 开发实战经典</td> 
<td>69.80</td> 
<td>2011-11</td> 
<td>2500</td> 
<td>215.168.54.125</td> 
</tr> 
</tbody> 
</table> 
</p> 
</body> 
</html> 

tableSort.js代码清单：
复制代码 代码如下:

View Code 
$(document).ready(function(){ 
var tableObject = $(&#39;#tableSort&#39;);//获取id为tableSort的table对象 
var tbHead = tableObject.children(&#39;thead&#39;);//获取table对象下的thead 
var tbHeadTh = tbHead.find(&#39;tr th&#39;);//获取thead下的tr下的th 
var tbBody = tableObject.children(&#39;tbody&#39;);//获取table对象下的tbody 
var tbBodyTr = tbBody.find(&#39;tr&#39;);//获取tbody下的tr 
var sortIndex = -1; 
tbHeadTh.each(function() {//遍历thead的tr下的th 
var thisIndex = tbHeadTh.index($(this));//获取th所在的列号 
$(this).mouseover(function(){ 
tbBodyTr.each(function(){//编列tbody下的tr 
var tds = $(this).find("td");//获取列号为参数index的td对象集合 
$(tds[thisIndex]).addClass("hover"); 
}); 
}).mouseout(function(){ 
tbBodyTr.each(function(){ 
var tds = $(this).find("td"); 
$(tds[thisIndex]).removeClass("hover"); 
}); 
}); 
$(this).click(function() { 
var dataType = $(this).attr("type"); 
checkColumnValue(thisIndex, dataType); 
}); 
}); 
$("tbody tr").removeClass();//先移除tbody下tr的所有css类 
$("tbody tr").mouseover(function(){ 
$(this).addClass("hover"); 
}).mouseout(function(){ 
$(this).removeClass("hover"); 
}); 
//对表格排序 
function checkColumnValue(index, type) { 
var trsValue = new Array(); 
tbBodyTr.each(function() { 
var tds = $(this).find(&#39;td&#39;); 
trsValue.push(type + ".separator" + $(tds[index]).html() + ".separator" + $(this).html()); 
$(this).html(""); 
}); 
var len = trsValue.length; 
if(index == sortIndex){ 
trsValue.reverse(); 
} else { 
for(var i = 0; i < len; i++){ 
type = trsValue[i].split(".separator")[0]; 
for(var j = i + 1; j < len; j++){ 
value1 = trsValue[i].split(".separator")[1]; 
value2 = trsValue[j].split(".separator")[1]; 
if(type == "number"){ 
value1 = value1 == "" ? 0 : value1; 
value2 = value2 == "" ? 0 : value2; 
if(parseFloat(value1) > parseFloat(value2)){ 
var temp = trsValue[j]; 
trsValue[j] = trsValue[i]; 
trsValue[i] = temp; 
} 
} else if(type == "ip"){ 
if(ip2int(value1) > ip2int(value2)){ 
var temp = trsValue[j]; 
trsValue[j] = trsValue[i]; 
trsValue[i] = temp; 
} 
} else { 
if (value1.localeCompare(value2) > 0) {//该方法不兼容谷歌浏览器 
var temp = trsValue[j]; 
trsValue[j] = trsValue[i]; 
trsValue[i] = temp; 
} 
} 
} 
} 
} 
for(var i = 0; i < len; i++){ 
$("tbody tr:eq(" + i + ")").html(trsValue[i].split(".separator")[2]); 
} 
sortIndex = index; 
} 
//IP转成整型 
function ip2int(ip){ 
var num = 0; 
ip = ip.split("."); 
num = Number(ip[0]) * 256 * 256 * 256 + Number(ip[1]) * 256 * 256 + Number(ip[2]) * 256 + Number(ip[3]); 
return num; 
} 
})

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Running result:

Jquery operates table columns and sorts tables

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