code: function objectAndParentGivenPath(path) {
    let obj = global || window;
    let parent = obj;
  
    for (let part of path.split('.')) {
      parent = obj;
      obj = obj[part];
    }
  
    d(`parent: ${parent}, obj: ${obj}`);
    if (typeof(parent) !== 'object') {
      throw new Error(`Couldn't access part of the object window.${path}`);
    }
  
    return [parent, obj];
  }
docs: Walks the global object hierarchy to resolve the actual object that a dotted
  object path refers to.
  
  @param  {string} path  A path to the object to execute, in dotted
  form i.e. 'document.querySelector'.
  
  @return {Array<string>}      Returns the actual method object and its parent,
  usually a Function and its `this` parameter, as
  `[parent, obj]`
  
  @private