Menu
Is there any better way to get take a string such as "(123) 455-2344" and get "1234552344" from it than doing this:
var matches = Regex.Matches(input, @"[0-9]+", RegexOptions.Compiled); return String.Join(string.Empty, matches.Cast<Match>() .Select(x => x.Value).ToArray()); Perhaps a regex pattern that can do it in a single match? I couldn't seem to create one to achieve that though.
876
To find numbers from a given string in Python we can easily apply the isdigit() method. In Python the isdigit() method returns True if all the digit characters contain in the input string and this function extracts the digits from the string. If no character is a digit in the given string then it will return False.
The following example shows how you can use the replaceAll() method to extract all digits from a string in Java: // string contains numbers String str = "The price of the book is $49"; // extract digits only from strings String numberOnly = str. replaceAll("[^0-9]", ""); // print the digitts System. out.
Do you need to use a Regex?
return new String(input.Where(Char.IsDigit).ToArray()); Have you got something against Replace?
return Regex.Replace(input, @"[^0-9]+", ""); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
