Method pushGradients

cart-pole/index.js:237–245

* Push a new dictionary of gradients into records. * * @param {{[varName: string]: tf.Tensor[]}} record The record of variable * gradient: a map from variable name to the Array of gradient values for * the variable. * @param {{[varName: string]: tf.Tensor}} gradients The new gradi

(record, gradients)

   *   into `record`: a map from variable name to the gradient Tensor.
   */
  pushGradients(record, gradients) {
    for (const key in gradients) {
      if (key in record) {
        record[key].push(gradients[key]);
      } else {
        record[key] = [gradients[key]];
      }
    }
  }
}

// The IndexedDB path where the model of the policy network will be saved.