Function untrackClass

src/helpers/classList.js:102–107

(classListRef, poll, classes)

 * @param {Array}  classes      The list of classes to be untracked.
 */
const untrackClass = (classListRef, poll, classes) => {
  classes.forEach(className => {
    decrementReference(poll, className);
    poll[className] === 0 && classListRef.remove(className);
  });
};

/**
 * Public inferface to add classes to the document.body.