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2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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This article will explain in detail how to use regular expressions to check password complexity in Javascript. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.
The regular expressions currently used are as follows:
(? =. *\ d) (? =. * [a-zA-Z]) (? =. * [^ a-zA-Z0-9]). {8jue 30}
The corresponding verification rule is: the password must contain letters, numbers, special characters, at least 8 characters, up to 30 characters.
This regular expression works well in C #, but there is a problem in Javascript.
How to write such a regular expression in js?
Test string: a123456-
The solution is as follows:
The problem is solved by changing\ d to [0-9]. The regular expression is as follows:
The copy code is as follows:
Var regex = new RegExp ('(? =. * [0-9]) (? =. * [a-zA-Z]) (? =. * [^ a-zA-Z0-9]). {8men30}')
Console.log (regex.test ('a123456muri'))
Let's take a look at the regular expression method for verifying passwords
Password rules: 6-20 alphanumeric combination:
The copy code is as follows:
Var reg = / ^ [A-Za-z0-9] {6Jing 20} $/
On how to use regular expressions in Javascript to check password complexity is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.
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