Check if a single character is a whitespace?

Question

What is the best way to check if a single character is a whitespace?

I know how to check this through a regex.

But I am not sure if this is the best way if I onl

Answer 1

function hasWhiteSpace(s) {
  return /\s/g.test(s);
}

This will work

or you can also use this indexOf():

function hasWhiteSpace(s) {
  return s.indexOf(' ') >= 0;
}