Question

I am trying to build simple regex with js.

the rules for the regex are:

Length: 6-32 characters.

alphanumric characters.

at least 1 letter and 1 digit.

special characters: not allowed.

whitespace: not allowed.

i came up with this: /^(?=.*\d)(?=.*[a-zA-Z])/

but is not working well.

Answer 1

Use negative lookaheads:

/(?!^[0-9]*$)(?!^[a-zA-Z]*$)^([a-zA-Z0-9]{6,32})$/