Function eventNameToString

packages/zone.js/lib/node/events.ts:28–36

(eventName: string | Symbol)

    };

    const eventNameToString = function (eventName: string | Symbol) {
      if (typeof eventName === 'string') {
        return eventName;
      }
      if (!eventName) {
        return '';
      }
      return eventName.toString().replace('(', '_').replace(')', '_');
    };

    function patchEventEmitterMethods(obj: any) {
      const result = patchEventTarget(global, api, [obj], {