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<pre><code id="code-20-42533369-1">        string regex = @&quot;(?&lt;=&lt;title.*&gt;)([\s\S]*)(?=&lt;/title&gt;)&quot;;</code></pre>
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This regex will match anything(Including whitespace and anything that is not whitespace) that is entered between &lt;title&gt; tag of a web page.
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        string regex = @"(?<=<title.*>)([\s\S]*)(?=</title>)";


This regex will match anything(Including whitespace and anything that is not whitespace) that is entered between <title> tag of a web page.

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<pre><code id="code-10-29094556-1">HttpWebResponse response = null;

                try { response = request.GetResponse() as HttpWebResponse; }

                catch (WebException) { return null; }



                // Regular expression for an HTML title

                string regex = @&quot;(?&lt;=&lt;title.*&gt;)([\s\S]*)(?=&lt;/title&gt;)&quot;;</code></pre>
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i want to understand what this do?
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(CODE)

i want to understand what this do?

to understand this code.

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.