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Home  >  Article  >  Web Front-end  >  Introduction to the use of JavaScript form validation plug-in

Introduction to the use of JavaScript form validation plug-in

巴扎黑
巴扎黑Original
2017-08-22 11:08:101363browse


The example in this article describes the universal form validation plug-in implemented by JS. Share it with everyone for your reference. The details are as follows:

Here is a common JS form validation plug-in code. How to use: Step 1: Set the form item data type, Step 2: Instance form verification, verification error prompt instructions (the program has its own related error prompts, you can customize the text of each verification error prompt, just add msg).

The screenshot of the running effect is as follows:

Introduction to the use of JavaScript form validation plug-in

The specific code is as follows: 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style> 
body,td{font:12px Verdana;color:#333}
input,textarea,select,td,th{font:12px Verdana;color:#333;border:1px solid #999;background:#fff}
table{border-collapse:collapse;}
th{font:bold 12px Verdana; text-align:right;padding:5px;}
td{padding:3px;line-height:1.8;}
input{height:20;}
textarea{width:80%;height:50px;overfmin:auto;}
form{display:inline}
/*输入框样式*/
input[type=text],input[type=password],textarea{border:1px solid #ccc;padding:2px;border-radius:1px;box-shadow:0 1px 2px rgba(0,0,0,0.1) inset;outline:medium none;line-height:25px;
-webkit-transition:all 0.15s ease-in 0s;
-moz-transition:all 0.15s ease-in 0s;
-o-transition:all 0.15s ease-in 0s;
font-family:"Microsoft YaHei",Verdana,Arial;
font-size:14px;
vertical-align:top;
}
input[type=text],input[type=password]{height:25px;}
input[type=text]:focus,input[type=password]:focus,textarea:focus{/*border-color:rgba(82,168,236,0.8);*/border-color:#52a8ec;box-shadow:0 1px 2px rgba(0,0,0,0.1) inset,0 0 5px rgba(82,168,236,0.6);outline:0 none;}
</style>
</head>
<body>
<h2>使用方法</h2>
<p>第一步：需设定表单项数据类型</p>
<p style="padding:10px;border:2px dashed #ea0; background-color:#ffe;"><input type="text" name="name" <strong style="color:#f00;">dataType="chinese[2,8]"</strong> /></p>
<p>第二步：实例表单验证</p>
<p style="padding:10px;border:2px dashed #ea0; background-color:#ffe;"><script type="text/javascript"><strong style="color:#f00;">new ValidatorForm(表单对象);</strong> </script></p>
<h3>dataType可选参数</h3>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
 <tr>
 <th colspan="3" style="text-align:left; background-color:#eee;">基础验证</th>
 </tr>
 <tr>
  <th>email</th>
  <td>Email地址</td>
  <td rowspan="11"><strong>均可配合中括号使用</strong>，例如<br />
  长度验证：chinese[1,10]　为限制只能输入1-10个全角字符，<strong>注：一个全角字符长度为2</strong><br />
  数字大小验证：number[18,26]　为限制只能输入18-26的数字<br />
  日期范围验证：date[1970-1-1,2012-12-12]　为限制1970-1-1至2012-12-12日期<br />
  <strong>上限及下限设定</strong><br />
  下限设定：chinese[1,]　至少输入1个或以上有效字符<br />上限设定：chinese[,6]　最多输入6个有效字符<br />number和date格式也类式</td>
 </tr>
 <tr>
  <th>tel</th>
  <td>电话：支持手机/固话，识别区号及全半角逗号分隔多项</td>
 </tr>
 <tr>
  <th>mobile</th>
  <td>手机号码</td>
 </tr>
 <tr>
  <th>url</th>
  <td>网址</td>
 </tr>
 <tr>
  <th>number</th>
  <td>数字</td>
 </tr>
 <tr>
  <th>english</th>
  <td>英文字母</td>
 </tr>
 <tr>
  <th>chinese</th>
  <td>全角字符</td>
 </tr>
 <tr>
  <th>username</th>
  <td>帐号：字母开头4-20位的字母数字加下划线组合</td>
 </tr>
 <tr>
  <th>password</th>
  <td>密码：4-20位字母数字或@!#$%^&*.~组合</td>
 </tr>
 <tr>
  <th>date</th>
  <td>日期</td>
 </tr>
 <tr>
  <th>length</th>
  <td>长度：格式“length[最小长度,最大长度]”</td>
 </tr>
 <tr>
  <th colspan="3" style="text-align:left; background-color:#eee;">其它验证</th>
 </tr>
 <tr>
  <th>Compare</th>
  <td colspan="2">值对比：格式“Compare[比较符比较对象,比较类型]”<br />
  比较符包括[>,>=,<,<=,!=,=]<br />
  比较对象为表单项name,当表单有同名name值多项时取第一项<br />
  比较类型可选值[text,number,date]分别为[字符比较,数字比较,日期比较]，留空时对当前项值自动识别后对比<br />
  例如Compare[=password]</td>
 </tr>
 <tr>
  <th>exec</th>
  <td colspan="2">自定义函数：格式“exec[函数名]” <br />
  传入当前输入框对象，返回json格式“{stat:结果[true/false],msg:提示文本,msgCss:样式[className],inCss:输入框样式[className]}”，stat为验证结果是否正确为必须返回项，其它项留空使用默认设置[inCss暂时未使用]
  <br /></td>
 </tr>
</table>
<h3>验证错误提示说明</h3>
<p>程序有自带相关错误提示，可自定义每项验证错误提示时文本，只需添加msg</p>
<p style="padding:10px;border:2px dashed #ea0; background-color:#ffe;"><input type="text" name="name" dataType="chinese[2,8]" <strong style="color:#f00;">msg="姓名必需填写1-4个汉字"</strong> /></p>
<form name="theForm" id="theForm" action="" method="get">
 <h2>表单验证示例</h2>
 <table align="center" width="100%">
 <tr>
  <td>真实姓名：</td><td><input type="text" name="Name" dataType="chinese[1,]" /><span msgbox="1">请输入真实姓名</span>
  <span id="vfMsgBox_Name"></span>
  </td>
 </tr>
 <tr>
  <td>英文名：</td><td><input type="text" name="Nick" dataType="english[1,10]" /></td>
 </tr>
 <tr>
  <td>主页：</td><td><input type="text" name="Homepage" dataType="url" /></td>
 </tr>
 <tr>
  <td>密码：</td><td><input name="password" type="text" dataType="password" /></td>
 </tr>
 <tr>
  <td>重复：</td><td><input name="password2" type="text" dataType="Compare[=password"密码]" /></td>
 </tr>
 <tr>
  <td>信箱：</td><td><input type="text" name="email" dataType="email[1,]" /></td>
 </tr>
 <tr>
  <td>信箱：</td><td><input type="text" name="email2" dataType="email Compare[=email"信箱]" /></td>
 </tr>
 <tr>
  <td>邮编：</td><td><input type="text" name="QQ" dataType="number[100000,999999]" /></td>
 </tr>
 <tr>
  <td>日期：</td><td><input type="text" name="date" dataType="date" />
  <input type="text" name="date2" dataType="Compare[>date"起始日期,date]" />
  </td>
 </tr>
 <tr>
  <td>年龄：</td><td><input type="text" name="Year" dataType="number[18,28]" /></td>
 </tr>
 <tr>
  <td>年龄1：</td><td><input type="text" name="Year1" dataType="number[,18]" /></td>
 </tr>
 <tr>
  <td>电话：</td><td><input type="text" name="Phone" dataType="tel" /></td>
 </tr>
 <tr>
  <td>手机：</td><td><input type="text" name="mobile" dataType="mobile" /></td>
 </tr>
 <tr>  <td>生日：</td><td><input type="text" name="Birthday" dataTy

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