The RegEx ^([0-9])+$ supports numbers and spaces. However, I want it to support empty lines too. How?
The RegEx ^([0-9])+$ supports numbers and spaces. However, I want it to support empty
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The RegEx ^([0-9])+$ supports numbers and spaces. However, I want it to support empty lines too. How?
Use this instead:
or, more simply:
\dmeans any digit (0-9).+means one or more matches.*means zero or more matches.