Regular exression match not found
I would like to create a Regular Expression match check for the whole number 3 in a string.
The regex would be: [^.]|^3[^.]
Although in the result you can see that it is not correct - the 4th line should be true as it contains 3 as a whole number.
I've tested the Regex at https://regexr.com/ and it is showing the match:
Am I missing something or is this a bug?
Many thanks for your support!