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var numericString = testString.replace(/[^0-9]/g, ''); return numericString; }. This function uses the replace method and the /[^0-9]/g,'' Regular Expression to remove non-numeric characters from the testString variable passed in the parameter list.Save the document and launch your browser. Open the document in your browser.ips & Warnings. 1  This example runs the removeNonNumeric function when the Web page loads. 2  Remove the first three lines of code before that function to stop that from happening. 3  To use the function in production, call the function and pass it a string containing text.
2 thoughts on â Remove white spaces in a string c# â. Remove white spaces in a string c#â¦. By using trim() we can remove white space characters from the beginning and end of a string.But to remove white space characters in middle we cannot use trim().We can, however, easily remove the whitâ¦â¦.string MyString = â Big â;Console.WriteLine(âHello{0}World!â, MyString);emove white spaces in a string c#â¦. By using trim() we can remove white space characters from the beginning and end of a string.But to remove white space characters in middle we cannot use trim(). We can, however, easily remove the whitâ¦â¦. string MyString = â Big â; Console.WriteLine(âHello{0}World!â, MyString);