I'm using a field with string datatype, I want add validation to that field which will check if the string entered into the field contains only numbers, please help me with the regex?
Regex to check the data entered into the field contains only numbers
813 Views Asked by Rajdeep Singh At
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There are 2 best solutions below
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I'd check if
\D+returns a match. If so, there's at least one element that isn't a digit. Also, Test if string is a number in Ruby on Rails gives some answers without using regular expressions.