Check if a string is hexadecimal

Question

I know the easiest way is using a regular expression, but I wonder if there are other ways to do this check.

Why do I need this? I am writing a Python script that re

Answer 1

Simple solution in case you need a pattern to validate prefixed hex or binary along with decimal

\b(0x[\da-fA-F]+|[\d]+|0b[01]+)\b

Sample: https://regex101.com/r/cN4yW7/14

Then doing int('0x00480065006C006C006F00200077006F0072006C00640021', 0) in python gives 6896377547970387516320582441726837832153446723333914657

The base 0 invokes prefix guessing behaviour. This has saved me a lot of hassle. Hope it helps!