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 (@#&).

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