×

JQuery 控制内容长度超出规定长度显示省略号

作者:Terry2017.02.10来源:Web前端之家浏览:11603评论:0
关键词:JQueryJS
长度超出规定长度,显示省略号

设置class为displayPart,

设置自定义属,displayLength可显示长度(不包含...),双字节字符,长度 *2,
复制代码 代码如下:

<script type="text/javascript">
$.fn.extend({
displayPart:function () {
var displayLength = 100;
displayLength = this.attr("displayLength") || displayLength;
var text = this.text();
if (!text) return "";

var result = "";
var count = 0;
for (var i = 0; i < displayLength; i++) {
var _char = text.charAt(i);
if (count >= displayLength) break;
if (/[^x00-xff]/.test(_char)) count++; //双字节字符,//[u4e00-u9fa5]中文

result += _char;
count++;
}
if (result.length < text.length) {
result += "...";
}
this.text(result);
}
});

$(function () {
$(".displayPart").displayPart();
});

</script>

复制代码 代码如下:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
</head>

<body>
<h2>hello world</h2>

<div style="width:500px;">
hello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello world!!!
</div>
<hr>
<h2>hello</h2>
<div class="displayPart" displayLength="40"> hello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhelloworldhello worldhello worldhello worldhello worldhello worldhello world
</div>
</body>
</html>

您的支持是我们创作的动力!
温馨提示:本文作者系Terry ,经Web前端之家编辑修改或补充,转载请注明出处和本文链接:
https://www.jiangweishan.com/article/svg1486656000697.html

网友评论文明上网理性发言已有0人参与

发表评论: