Regex - Anton-L-GitHub/Learning GitHub Wiki
| . | Any character | (Except new line) |
| \d | Digit | (0-9) |
| \D | Not Digit | |
| \w | Word Character | (a-z, A-Z, 0-9, _) |
| \W | Not a Word Character | |
| \s | Whitespace | (space, tab, newline) |
| \S | Not Whitespace |
| \b | Word Boundary | |
| \B | Not a Word Boundary | |
| ^ | Start of line | |
| $ | End of line |
| ^-?\d+(,\d+)*(.\d+(e\d+)?)?$ | Matching decimal numbers (3.1456, -255.35, 126, 1.9e10, 123,140.00) |
Exercise - https://regexone.com/ - https://regexcrossword.com/
Tester - https://regex101.com/