Function getComponentKey

bundle.js:2110–2119

* Generate a key string that identifies a component within a set. * * @param {*} component A component that could contain a manual key. * @param {number} index Index that is used if a manual key is not provided. * @return {string}

(component, index)

     * @return {string}
     */
    function getComponentKey(component, index) {
      // Do some typechecking here since we call this blindly. We want to ensure
      // that we don't block potential future ES APIs.
      if ((typeof component === 'undefined' ? 'undefined' : _typeof(component)) === 'object' && component !== null && component.key != null) {
        // Explicit key
        return escape(component.key);
      }
      // Implicit key determined by the index in the set
      return index.toString(36);
    }

    function forEachSingleChild(bookKeeping, child, name) {
      var func = bookKeeping.func,