I am trying to write a complex regular expression pattern and a small part inside the regex is confusing me. Here is the example,
var s = /^((?!\bN\b).)*$/
console.log(s.test('N'));
While passing,
N123 - true
NABC - true
N - false
N - false (with space right next to N)
N/ - false
N+ - false
N- - false
Question: Strings works fine only when it has a continuous characters following with N. But why it is false when there is a space or special character?
