我试图通过使用javascript来进行表单验证,但是,我认为名称字段存在一些问题。使用JavaScript和BootstrapDialog的表单验证
每当我为名称字段输入任何值时,它都会自动跳过其他验证并将我指向index.php。
另一种情况是我填写除名称字段之外的所有内容后,它会自动跳过其他验证并将我引导至index.php。
任何帮助将不胜感激!
<!DOCTYPE html>
<html>
<head>
<!-- https://stackoverflow.com/questions/10585689/change-the-background-color-in-a-twitter-bootstrap-modal
http://nakupanda.github.io/bootstrap3-dialog/
-->
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap3-dialog/1.34.7/css/bootstrap-dialog.min.css">
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">
<link href- "css/trying.css" >
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap3-dialog/1.34.7/js/bootstrap-dialog.min.js"></script>
<script>
function showError(message) {
BootstrapDialog.show({
title: 'Attention',
message: message,
type: BootstrapDialog.TYPE_DANGER,
buttons: [{
label: 'Ok',
cssClass: 'btn-default',
action: function(dialog) {
dialog.close();
}
}]
});
return false;
}
function validationFunction($msg){
var list = document.createElement('ul');
for(var i = 0; i < $msg.length; i++) {
var item = document.createElement('li');
item.appendChild(document.createTextNode($msg[i]));
list.appendChild(item);
}
showError($msg);
return false;
}
function validateForm(form) {
var RE_NAME = /^[A-Z a-z]+$/;
var RE_EMAIL = /^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})$/;
var RE_PASSWORD = /^[\S]{6,20}$/
var errors = [];
var name = form.reg_full_name.value;
var email = form.reg_email.value;
var password = form.reg_password.value;
var confirmPass = form.reg_confirmpass.value;
//Name Validation
if (name == "") {
errors.push("Please enter your full name");
}
else if (!RE_NAME.test(x)){
errors.push("Please enter valid name");
}
//Email Validation
if (!RE_EMAIL.test(email)){
errors.push("Please enter a valid Email");
}
//Password Validation
if (password =="" || confirmPass ==""){
errors.push("Password and Comfirmation Password required");
}
else if (!RE_PASSWORD.test(password)){
errors.push("Please a enter a password 6 - 20 characters in length");
}
else if (password!= confirmPass){
errors.push("Your password and confirmation password do not match");
}
//If more than 1 error
if (errors.length > 1) {
validationFunction(errors);
alert(errors);
return false;
}
}
</script>
</head>
<body>
<form name="myForm" action=""
onsubmit="return validateForm(this)" method="post">
Name: <input type="text" name="reg_full_name"><br><br>
Email: <input type="email" name="reg_email"><br><br>
Password: <input type="password" name="reg_password"><br><br>
Confirm Password: <input type="password" name="reg_confirmpass"><br><br>
<input type="submit" value="Submit">
</form>
</body>
</html>
感谢您纠正我。 :) 我认为errors.length是数组大小。如果只有1个错误,它会直接跳过if语句? – beginnerK
你说得对,.length是数组的大小,更准确地说,数组里面的项数。 .length本身不是数组,所以如果里面有一个项目,它不会以0开头。 所以,如果你想验证只显示错误,如果有超过1错误,如评论说,那么你需要说: if(errors.length> 1){...} 如果有只有一个错误(或者根本没有错误),那么括号内的代码将不会执行。 – makobasuri