Jake should be doing his homework

var tests = ['  John  3 :16 ', 'John3:16', 'John 3:16', 'John_3_16', 'john3', 'john.3.16', ' ;john;3;16; ', 'jo3hn16', 'lizards'];
var regex = /\W+|_/;
tests.forEach(function(el) {
  if (el == null) return null;
  var verse = el.trim();
  verse = verse.split(regex);
  verse = verse.filter(function(element){
    return (element != null && element != "");
  });
  verse[0] = verse[0].toUpperCase().charAt(0) + verse[0].slice(1);
  verse = verse.join(".");
  console.log(verse + ", " + (verse == "John.3.16"));
});