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Example analysis of how to implement registration form verification in JavaScript (picture)
Example analysis of how to implement registration form verification in JavaScript (picture)
说明：在点击提交时进行表单校验，具体要求如下：
1）用户名为3~16个字符，且不能包含”@”和”#”字符；
2）密码和校验密码必须一致，且长度在8个字符到16个字符；
3）兴趣爱好至少选择一项；
4）政治面貌必须为党员；
5) 所有输入符合要求后提示“注册成功”。
HTML代码为：在（register.html中）
<!DOCTYPE html><html lang="en">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<!--<meta charset="UTF-8">-->
<link rel="stylesheet" type="text/css" href="../css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="../css/myStyle.css">
<title>用户注册</title></head><body><p class="container">
<form class="form-horizontal" role="form">
<p class="form-group">
<p class="col-sm-6" >
<legend class="title" >用户注册信息</legend>
</p>
</p>
<p class="form-group">
<label for="user-name" class="col-sm-2 control-label">用户名：</label>
<p class="col-sm-3">
<input type="text" class="form-control" id="user-name" onblur="checkUserName()"
placeholder="请输入用户名"/>
</p>
<p class="col-sm-2">
<span id="nameInfo"></span>
</p>
</p>
<p class="form-group">
<label for="password" class="col-sm-2 control-label">密码：</label>
<p class="col-sm-3">
<input type="password" class="form-control" id="password" onblur="checkRepassword()"
placeholder="请输入密码"/>
</p>
<p class="col-sm-2">
<span id="passwordInfo"></span>
</p>
</p>
<p class="form-group">
<label for="repassword" class="col-sm-2 control-label">校验密码：</label>
<p class="col-sm-3">
<input type="password" class="form-control" id="repassword" onblur="checkRepassword()"
placeholder="请输入校验密码">
</p>
<p class="col-sm-2">
<span id="repasswordInfo"></span>
</p>
</p>
<p class="form-group">
<label for="nativeplace" class="col-sm-2 control-label">籍贯：</label>
<p class="col-sm-2">
<select id="nativeplace">
<option value="zhejiang">浙江</option>
<option value="fujian">福建</option>
<option value="anhui">安徽</option>
<option value="sichuan">四川</option>
</select>
</p>
</p>
<p class="form-group">
<label class="col-sm-2 control-label">兴趣爱好：</label>
<p class="col-sm-6" >
<p onblur="checkHobby()">
<!--通过将 .checkbox-inline 或 . 类应用到一系列的多选框或单选框空间上，可以使这些控件排列在一行-->
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox1" name="hobby" value="basketball">篮球 </label>
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox2" name="hobby" value="soccer">足球 </label>
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox3" name="hobby" value="writing" checked="checked">书法 </label>
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox4" name="hobby" value="music">音乐 </label>
<br/>
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox5" name="hobby" value="painting">绘画 </label>
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox6" name="hobby" value="free-combat">散打 </label>
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox7" name="hobby" value="yoga" >瑜伽 </label>
<label class="checkbox-inline">
<input type="checkbox" id="inlineCheckbox8" name="hobby" value="other">其他 </label>
<span id="hobbyInfo"></span>
</p>
</p>
</p>
<p class="form-group" onblur="checkStatus()">
<label class="col-sm-2 control-label">政治面貌：</label>
<p class="col-sm-4">
<label class="radio-inline">
<input type="radio" name="inlineRadioOptions" value="党员" checked="checked">党员 </label>
<label class="radio-inline">
<input type="radio" name="inlineRadioOptions" value="团员" checked="" >团员 </label>
<label class="radio-inline">
<input type="radio" name="inlineRadioOptions" value="群众" checked="">群众 </label>
</p>
</p>
<p class="form-group">
<p class="col-sm-offset-2 col-sm-10">
<button type="submit" id="submit" class="btn btn-success" onclick="validateForm()">提交</button>
<button type="submit" class="btn btn-warning">重置</button>
<br/>
<br/>
<label><a href="#">注册帮助信息请点击这里</a></label>
</p>
</p>
</form>
</p>
<script type="text/javascript" src="../js/jquery-2.1.4.min.js">
</script>
<script type="text/javascript" src="../js/bootstrap.min.js">
</script>
<script type="text/javascript" src="../js/register.js">
</script>
</body>
</html>
CSS代码为：（在myStyle.css中）
form{
background-color: #fafdec;
}legend{
position: relative;
text-align: center;
height: 50px;
padding-top: 10px;
padding-bottom: 10px;
margin-bottom: 2px;
background-color: #e9e9e9;
font-family: Consolas;
font-size: 1.5em;
}label{
align-content: center;
text-align: center;
font-size: 1.1em;
}button{
margin-right: 18px;
}.text{
width: 500px;
height: 100px;
}.col-sm-2 span{
color:red;
}
JavaScript代码为：（封装在register.js文件中）
/* Created by Microsoft on 2016/7/30.*/$(document).ready(function () {
function validateForm(){
if(checkUserName()&&checkPassword()&&checkRepassword()&&checkHobby()&&checkStatus()){
alert("恭喜您！注册成功！");
}
}
});//验证用户名（为3~16个字符，且不能包含”@”和”#”字符）function checkUserName(){
var name=document.getElementById("user-name").value.trim();
var nameRegex=/^[^@#]{3,16}$/;
if(!nameRegex.test(name)){
document.getElementById("nameInfo").innerHTML="用户名为3~16个字符，且不能包含”@”和”#”字符";
}else{
document.getElementById("nameInfo").innerHTML="";
return true;
}
}//验证密码（长度在8个字符到16个字符）function checkPassword(){
var password=document.getElementById("password").value.trim();
//var password=$("#password").value;
$("#passwordInfo").innerHTML=""; //密码长度在8个字符到16个字符，由字母、数字和".""-""_""@""#""$"组成
//var passwordRegex=/^[0-9A-Za-z.\-\_\@\#\$]{8,16}$/;
//密码长度在8个字符到16个字符，由字母、数字和"_"组成
var passwordRegex=/^[0-9A-Za-z_]\w{7,15}$/;
if(!passwordRegex.test(password)){
document.getElementById("passwordInfo").innerHTML="密码长度必须在8个字符到16个字符之间";
}else{
document.getElementById("passwordInfo").innerHTML="";
}
}//验证校验密码（和上面密码必须一致）function checkRepassword(){
var repassword=document.getElementById("repassword").value.trim();
//校验密码和上面密码必须一致
if(repassword!==password){
document.getElementById("repasswordInfo").innerHTML="两次输入的密码不一致";
}else if(repassword==password){
document.getElementById("repasswordInfo").innerHTML="";
}
}//验证兴趣爱好（至少选择一项）即，多选框非空function checkHobby(){
var textbox=document.getElementsByName("hobby");
$('input[type=checkbox]').click(function(){
if($("input[name='hobby']:checked").length!=0 ) {
return true;
}
});
}//验证政治面貌（必须为党员）function checkStatus(){
$(function(){
$("#submit").click(function(){
var val=$('input:radio[name="inlineRadioOptions"]:checked').val();
if(val==null){
alert("请选中一个!");
return false;
}
else if(val=="党员"){
return true;
}
});
});
}
效果截图：
总体界面为：
1）用户名为3~16个字符，且不能包含”@”和”#”字符；
2）密码和校验密码必须一致，且长度在8个字符到16个字符；
3) 验证符合要求后提示“注册成功”
The above is the detailed content of Example analysis of how to implement registration form verification in JavaScript (picture). For more information, please follow other related articles on the PHP Chinese website!
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