Javascript regex - no white space at beginning + allow space in the middle

Question

I would like to have a regex which matches the string with NO whitespace(s) at the beginning. But the string containing whitespace(s) in the middle CAN match. So far i have

Answer 1

If your field for user name only accept letters and middle of space but not for begining and end

User name: /^[^\s][a-zA-Z\s]+[^\s]$/

If your field for user ID only accept letters,numbers and underscore and no spaces allow

user ID: /^[\w]+$/

If your field for password only accept letters,number and special character no spaces allow

Password: /^[\w@#&]+$/

Note: \w content a-zA-Z, number, underscore (_) if you add more character, add you special character after \w.

You can compare with user ID and password field in password field im only add some special character (@#&).

India public thoko like

Answer 2

In your 2nd character class, \\s will match \ and s, and not \s. Thus it doesn't matches a whitespace. You should use just \s there. Also, move the hyphen towards the end, else it will create unintentional range in character class:

^[^-\s][a-zA-Z0-9_\s-]+$