Replace every 3rd word with "garlic"

garlic-every-third-word.js

// Select an element in the inspector, then paste this into the console.

function textNodesUnder(el){
  var n, a=[], walk=document.createTreeWalker(el,NodeFilter.SHOW_TEXT,null,false);
  while(n=walk.nextNode()) a.push(n);
  return a;
}

function notAllWhitespace(value) {
  return !value.match(/^\s*$/g);
}

var count = Math.floor(Math.random() * 3)
var textNodesToChange = textNodesUnder($0).filter(t => notAllWhitespace(t.nodeValue));
textNodesToChange.forEach(t => {
  let words = t.nodeValue.split(/ /);
  let replaced = words.map(s => {
      if (notAllWhitespace(s) && count++ %3 === 0) {
        if (s.match(/^[A-Z0-9]/)) {
          return 'Garlic';
        }
        return 'garlic';
      }
      return s
    });
  t.nodeValue = replaced.join(' ');
  });