如何查找“< script>”使用JAVASCRIPT /正则表达式从字符串中标记 [英] How to find "<script>" tag from the string with JAVASCRIPT/ regular expression

问题描述

我需要验证文本< script 的传入字符串。

I need to validate the incoming string for text <script.

string a = "This is a simple <script> string";

现在，我需要编写一个正则表达式来告诉我这个字符串是否包含< script> 是否标记。

Now, I need to write a regular expression that will tell me whether this string contains a <script> tag or not.

我最终写了类似的内容：< *？脚本。*？>

I ended up writing something like: <* ?script.* ?>

但挑战是，
传入字符串可能包含以下方式的脚本，

But the challenge is, Incoming string may contain script in following ways,

string a = "This is a simple <script> string";
string a = "This is a simple < script> string";
string a = "This is a simple <javascript></javascript> string";
string a = "This is a simple <script type=text/javascript> string";

因此正则表达式应该检查是否开始< 标签，然后它应该检查脚本。

Hence the regular expression should check for starting < tag and then it should check for script.

推荐答案

A否定角色类在这里派上用场。

A negated character class comes in handy here.

<[^>]*script

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