Caused By this issue: https://stackoverflow.com/questions/6142922/replace-a-regex-capture-group-with-uppercase-in-javascript

RegExp_replace_with_funciton.js

function styleHyphenFormat(propertyName) {
  function upperToHyphenLower(match) {
    return '-' + match.toLowerCase();
  }
  return propertyName.replace(/[A-Z]/g, upperToHyphenLower);
}

function cssStyle2DomStyle(sName) {
  let result = sName.replace(/-\w/g, function (match) {
    return match.slice(1).toUpperCase();
  });
  return result.charAt(0).toLowerCase() + result.slice(1);
}