code: function initComponentData(instance, options, isPage) {
      let data = instance.data;
      if (isFunction(data)) {
          instance.data = instance.data();
      }
  
      instance.$init && instance.$init(isPage, options);
  }
docs: Initialize the component data
  
  @inner
  @param {Object} instance the instance to init
  @param {?Object} options the component init extra options information
  @param {boolean} isPage whether is page component