我正在做一个简单的注册页面。对于密码的东西,我需要检查新密码和确认密码是否相同,但不知道如何
<div class="row">
<!--New Username-->
<div class="large-4 columns form-text">New Username</div>
<div class="large-8 columns">
<div class="input-icon font-awesome"></div><input type="text" class="form-input" name="username" required>
</div>
</div>
<br/>
<div class="row">
<!--New email-->
<div class="large-4 columns form-text">Email</div>
<div class="large-8 columns">
<div class="input-icon font-awesome"></div><input type="email" class="form-input" name="email" pattern="[a-zA-Z]*@[a-zA-Z]*" required>
</div>
</div>
<br/>
<div class="row">
<!--New Passwrord-->
<div class="large-4 columns form-text">New Password</div>
<div class="large-8 columns">
<div class="input-icon font-awesome"></div><input type="password" class="form-input" name="password" required>
</div>
</div>
<br/>
<div class="row">
<!--Reconfirm new password-->
<div class="large-4 columns form-text">Re-enter Password</div>
<div class="large-8 columns">
<div class="input-icon font-awesome"></div><input type="password" class="form-input" name="password-confirm" required>
</div>
</div>
答案 0 :(得分:1)
这是相当多的代码,但我在fiddle上打破了一个例子。
简化的HTML:
<form id="passwordForm" action="#" method="POST">
Password:<br>
<input type="password" id="password"><br>
Confirm Password:<br>
<input type="password" id="confirmPassword"><br>
<input type="submit" id="submitButton" value="Check 'Em">
</form>
<div id="responseDiv"></div>
我使用了jQuery:
$(document).ready(function () {
$("#submitButton").click(function (e) {
e.preventDefault();
var matched,
password = $("#password").val(),
confirm = $("#confirmPassword").val();
matched = (password == confirm) ? true : false;
if(matched) {
//Submit line commented out for example. In production, remove the //
//$("#passwordForm").submit();
//Shows success message and prevents submission. In production, comment out the next 2 lines.
$("#responseDiv").html("Passwords Match");
return false;
}
else {
$("#responseDiv").html("Passwords don't match...");
return false;
}
});
});
很多时候,新学习者会忘记e.preventDefault();没有它,表单将提交,无论任何验证。如果出现问题则返回false,表单不会提交。
提交按钮上有一个事件监听器。如果单击它,或者按下回车键将聚焦在表单中,它将运行验证。如果一切正常,它会将信息发布到表单标记的action属性中的URL。
另一个重点是始终在服务器端重新验证。如果用户关闭了Javascript,则表单将发布信息,无论您的验证脚本中是什么。
答案 1 :(得分:0)
使用普通的javascript,只需适应您的源代码:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script>
function pass() {
var pass_1 = document.forms["myForm"].pass_1.value.length;
var pass_2 = document.forms["myForm"].pass_2.value.length;
if (pass_1 != pass_2) {
alert("the pass and repeat pass must be equal");
return false;
}
return true;
}
</script>
</head>
<body>
<form method="post" action="" name="myForm" onSubmit="pass(); return false;">
<input type="password" placeholder="type your pass" name="pass_1">
<input type="password" placeholder="confirm your pass" name="pass_2">
<input type="submit" value="validate">
</form>
</body>
</html>
上面的相同代码,但重定向:http://jsfiddle.net/m7BrM/
选项2使用插件: http://www.technicalkeeda.com/jquery/password-and-confirm-password-validation-in-jquery