Function _poll

packages/engine.io-client/lib/transports/polling.ts:70–75

* Starts polling cycle. * * @private

()

   * @private
   */
  private _poll() {
    debug("polling");
    this._polling = true;
    this.doPoll();
    this.emitReserved("poll");
  }

  /**
   * Overloads onData to detect payloads.