在我的情况下,我想避免 ~ 和 # 这就是为什么我使用了另一个解决方案:

function validEmail(email){
  const regex = /^((?!\.)[\w\-_.]*[^.])(@\w+)(\.\w+(\.\w+)?[^.\W])$/;
  return regex.test(email);
}

你也可以尝试

var string = "hmharsh3@gmail.com"
var exp = /(\w(=?@)\w+\.{1}[a-zA-Z]{2,})/i
alert(exp.test(string))

下面是MDN上推荐的Regex模式为HTML5:

支持电子邮件输入类型的浏览器自动提供验证,以确保仅符合互联网电子邮件地址标准格式的文本输入到输入框中。

/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}
[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/

https://developer.mozilla.org/en-US/docs/Web/HTML/元素/输入/电子邮件#验证

這些將與上使用的電子郵件(他們正確相匹配每個規則)。Gmail /^[a-z](?!\.\.)([a-z\.])){4,28}[a-z0-9]@gmail.com$/i Yahoo /^[a-z](?!\.\.)([w\.])){3,30}[w]@yahoo.com$/i Outlook/Hotmail /[a-z](?!\.\.)([w\.])){0,62}[w]@(outlook.com♰hotmail.com)$/i

我正在寻找一个 Regex 在 JS 通过所有电子邮件地址测试案例:

email@example.com 有效电子邮件 firstname.lastname@example.com 电子邮件包含地址字段 email@subdomain.example.com 电子邮件包含字段与域名 firstname+lastname@example.com Plus 标志被认为是有效的字符 email@192.0.2.123 域名是有效的 IP 地址 email@[192.0.2.123] IP 地址周围的广场 被认为是有效的“email”@example.com 电子邮件周围的引用是 c

这里我们去:

HTTP://regexr.com/3f07j

或雷格斯:

Regex = /(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@[*[a-zA-Z0-9-]+.[a-zA-Z0-9-.]+]*/

这个问题比一眼看起来更难回答。

世界各地有大量的人正在寻找“统治他们所有”,但事实是,有大量的电子邮件提供商。

为什么? 根据 RFC: https://en.wikipedia.org/wiki/Email_address#RFC_specification。

The local-part of the email address may use any of these ASCII characters:

- uppercase and lowercase Latin letters A to Z and a to z;
- digits 0 to 9;
- special characters !#$%&'*+-/=?^_`{|}~;
- dot ., provided that it is not the first or last character unless quoted, and provided also that it does not appear consecutively unless quoted (e.g. John..Doe@example.com is not allowed but "John..Doe"@example.com is allowed);[6]
Note that some mail servers wildcard local parts, typically the characters following a plus and less often the characters following a minus, so fred+bah@domain and fred+foo@domain might end up in the same inbox as fred+@domain or even as fred@domain. This can be useful for tagging emails for sorting, see below, and for spam control. Braces { and } are also used in that fashion, although less often.
- space and "(),:;<>@[\] characters are allowed with restrictions (they are only allowed inside a quoted string, as described in the paragraph below, and in addition, a backslash or double-quote must be preceded by a backslash);
- comments are allowed with parentheses at either end of the local-part; e.g. john.smith(comment)@example.com and (comment)john.smith@example.com are both equivalent to john.smith@example.com.

A__z/J0hn.sm{it!}h_comment@example.com.co

如果你尝试这个地址我赌它将失败在所有的或大部分的regex发布在整个网络上. 但记住这个地址遵循RFC规则,所以它是公平有效的。

想象一下我的失望,因为我无法在任何地方注册与这些 regex 检查!!!

如何处理,是的?

"very.(),:;<>[]\".VERY.\"very@\\ \"very\".unusual"@strange.example.com

在这样做时,一个好做法是“重新输入您的电子邮件”输入,以避免用户输入错误,如果这对您来说不够,请添加一个提前提交的模型窗口,标题为“这是您的当前电子邮件吗?”然后用户输入的电子邮件在一个H2标签中,您知道,清楚地显示他们输入的电子邮件,然后一个“是的,提交”按钮。