Intermediate Algorithm Scripting: Convert HTML Entities - freeCodeCamp solution

sol.js

function convertHTML(str) {

  let signs = {'&': '&', 
              '<': '&lt;',
              '>': '&gt;',
              '\"': '&quot;',
              '\'': '&apos;'};

  let signKeys = Object.keys(signs);
  console.log(signKeys);

  let strArr = str.split(/([&<>"'])/g);
  console.log(strArr);
  return strArr.map(word => {
    if (signKeys.includes(word)) {
      return signs[word];
    } else {
      return word;
    }
  }).join("");
}

console.log(convertHTML("Dolce & Gabbana"));