Method catch

packages/zone.js/test/common/Promise.spec.ts:592–596

(
          onrejected?: ((reason: any) => TResult | PromiseLike<TResult>) | undefined | null,
        )

        }

        catch<TResult = never>(
          onrejected?: ((reason: any) => TResult | PromiseLike<TResult>) | undefined | null,
        ): Promise<T | TResult> {
          return this._promise.catch.call(this._promise, onrejected);
        }

        then<TResult1 = T, TResult2 = never>(
          onfulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | undefined | null,