在JavaScript中实现电子邮件和密码的输入验证-ImplementingInputValidationforEmailandPasswordinJavaScript

2  

You can user Regular Expressions for both cases. As for the e-mail, you can read more here: http://www.zparacha.com/validate-email-address-using-Javascript-regular-expression/ As for the password check, I'd recommend reading this: http://www.the-art-of-web.com/Javascript/validate-password/

您可以对这两种情况使用正则表达式。至于电子邮件，您可以在这里阅读更多内容:http://www.z伞兵a.com/validate-email-address- Javascript-正则表达式/至于密码检查，我建议您阅读以下内容:http://www.the-art of-web.com/Javascript/validate-password/

Here's the validation of password:

密码验证如下:

Note: This regular expression doesn't check for special characters. I think it's kind of specific to your definitions, but you can edit the expression and add a list of characters that you'd consider special for your case.

注意:这个正则表达式不检查特殊字符。我认为它是特定于你的定义的，但是你可以编辑表达式并添加一个你认为适合你的情况的字符列表。

1  

Please see my project of the cross-browser filter of value of the text input element on your web page using Javascript language: Input Key Filter . You can filter the value as an integer number, a float number, or write a custom filter, such as a phone number filter. See an example of code of input an email and password:

请参阅我的项目，跨浏览器过滤器的价值文本输入元素在您的网页上使用Javascript语言:输入关键字过滤器。您可以将值筛选为整数、浮点数或编写自定义过滤器(如电话号码过滤器)。参见输入电子邮件和密码的代码示例:

    
	
	
	
	
	
	
			
	
	
	


Email: 

 New email: 

Password: 


 New password: 

Also see my page "Email:" and "Password:" of the example of the input key filter

还可以查看我的页面“Email:”和“Password:”的输入密钥过滤器示例

0  

You could use regexp for both of these

这两个都可以使用regexp。

function validate(form_id,email) {

   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = document.forms[form_id].elements[email].value;
   if(reg.test(address) == false) {

      alert('Invalid Email Address');
      return false;
   }
}

for the email (source: http://www.white-hat-web-design.co.uk/blog/Javascript-validation/)

用于电子邮件(来源:http://www.white hat-web-design.co.uk/blog/Javascript-validation/)

And use the same method for verifying your Password.

使用相同的方法验证密码。

http://www.w3schools.com/jsref/jsref_regexp_test.asp

http://www.w3schools.com/jsref/jsref_regexp_test.asp