Function getScope

src/core/core.defaults.js:15–25

* @param {object} node * @param {string} key * @return {object}

(node, key)

 * @return {object}
 */
function getScope(node, key) {
  if (!key) {
    return node;
  }
  const keys = key.split('.');
  for (let i = 0, n = keys.length; i < n; ++i) {
    const k = keys[i];
    node = node[k] || (node[k] = Object.create(null));
  }
  return node;
}

function set(root, scope, values) {
  if (typeof scope === 'string') {