^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$ |
Matches a valid email address |
example@example.com[1][2] |
^https?:\/\/(?:www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\/?$ |
Matches a basic URL |
https://www.example.com[2] |
\b\d{3}[-.]?\d{3}[-.]?\d{4}\b |
Matches a US phone number in xxx-xxx-xxxx format |
(123) 456-7890[1][2] |
\b\d{5}(?:[-\s]?\d{4})?\b |
Matches a US ZIP code in xxxxx or xxxxx-xxxx format |
12345 or 12345-6789[1][2] |
^[0-9]{1,2}\/[0-9]{1,2}\/[0-9]{4}$ |
Matches a date in MM/DD/YYYY format |
12/25/2022[1][2] |
^[0-9]{1,2}:[0-9]{2}$ |
Matches a time in HH:MM format |
17:30[1][2] |
^[a-zA-Z]+(?:[-'\s][a-zA-Z]+)*$ |
Matches a name with optional spaces, hyphens, and apostrophes |
John Doe or Mary-Ann O'Connor[2] |
^[1-9]\d*$ |
Matches a positive integer |
42[2] |
| `^-?[1-9]\d* |
^0$` |
Matches an integer (positive, negative, or zero) |
^[1-9]?\d*\.\d+$ |
Matches a floating-point number |
3.14, -1.5, 42.0[2] |
^[a-zA-Z0-9]+(?:_[a-zA-Z0-9]+)*$ |
Matches a snake_case string |
my_variable, snake_case_string[2] |
^[a-zA-Z0-9]+(?:-[a-zA-Z0-9]+)*$ |
Matches a kebab-case string |
my-variable, kebab-case-string[2] |
