Function getClass

src/js/utils/classes.js:17–28

(key = '', classes, classPrefix)

 * @param  {String} classPrefix
 */
export function getClass(key = '', classes, classPrefix) {
  if (!isUndefined(classes) && !isUndefined(classes[key])) {
    if (classes[key] === false) {
      return '';
    }
    return classes[key];
  } else if (classPrefix) {
    return `${classPrefix}-${key}`;
  } else {
    return key;
  }
}

export function removeClass(el, name) {
  name.split(' ').forEach((cls) => {