Method transform

csv/stringify_stream.ts:122–135

(chunk, controller)

          }
        },
        transform(chunk, controller) {
          try {
            controller.enqueue(
              stringify(
                [chunk],
                separator !== undefined
                  ? { separator, headers: false, columns }
                  : { headers: false, columns },
              ),
            );
          } catch (error) {
            controller.error(error);
          }
        },
      },
    );
  }