Removing Non-Numeric Characters from a string (The easy way)

I was searching the web for a way to easily remove all non numeric characters from a string, but the only thing I found was some "for loop" examples, which really slowed down my application, so after a little research I came up with a simple way to do it using Regular Expressions

Here it goes:

string Temp = "Hax00r L33t";
string Output = Regex.Replace(Temp, "[^0-9]", "");

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