仅在javascript中使用大写字母的正则表达式 [英] Regular expression for upper case letter only in javascript

问题描述

如何仅使用大写字母仅按字母顺序验证字段。仅由AZ字符生成的任何单词...

How can I validate a field only with upper case letters only alphabetic.Any word made by A-Z characters only...

推荐答案

尝试这样的javascript验证：

Try something like this for the javascript validation:

if (value.match(/^[A-Z]*$/)) {
    // matches
} else {
    // doesn't match
}

并且用于在服务器端验证php：

And for validation on the server side in php:

if (preg_match("/^[A-Z]*$/", $value)) {
    // matches
} else {
    // doesn't match
}

进行额外的服务器端检查总是一个好主意，因为可以轻松绕过javascript检查。

It's always a good idea to do an additional server side check, since javascript checks can be easily bypassed.

这篇关于仅在javascript中使用大写字母的正则表达式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！