Oct-07-2017, 10:07 PM
I am a beginner at programming and I wrote a function that returns the int value of a string but I want the function to return none if the input does not look like a number.
For example:
>>> casual_number("251")
251
>>> casual_number("1,aba,251")
>>> casual_number("1,251")
1251
Here is my code:
For example:
>>> casual_number("251")
251
>>> casual_number("1,aba,251")
>>> casual_number("1,251")
1251
Here is my code:
def casual_number(s): s=s.replace(',', '') return int(s)What do I add to my code to do this??