至少 1 个大写字母，后跟数字、可选的破折号和空格

Question

I want to implement regex which allows only capital, numeric, optional dash and space.

Format is: At least 1 capital, followed by numeric and optional dash and space.

I tried

/^[A-Z0-9- ]+$/

But it's not working. Can anyone please help. Thanks in advance.

Answer 1

You have mentioned "Atleast 1 capital followed by numeric and optional dash and space"

this is the regular expression for at least one Capital letter at first followed by any number of letters, hypens and spaces

^[A-Z][a-zA-Z0-9 -]*$

In case you meant Capital letter at any position,

this is the regular expression for at least one Capital letter at any position , and only containing zero or more letters[upper and lowercase] , numbers, space and hyphen at other positions

^[a-zA-Z0-9 -]*[A-Z][a-zA-Z0-9 -]*$

This is valid

This is valid 2

This is n*t valid

thiS is valid 3

this Is -4 valid

This + is not VALID.

--- this is Valid 2 --