Note: If the input string contains no digits, this solution will return a 0, which might be unexpected behavior. By contrast, parseInt() and unary + coercion will result in NaN.

Approved

python new test framework

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\d for digits! Thank you

Thanks so much! I did the most inefficient solution and had no idea this existed. I was reading all about 'regex' but still was coming up dry.

I passed the 420 test, great kata!

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