Method isFetched

packages/query-core/src/query.ts:412–414

* Returns `true` if the query has been fetched, i.e. it has resolved with * either data or an error at least once.

()

   * either data or an error at least once.
   */
  isFetched() {
    return this.state.dataUpdateCount + this.state.errorUpdateCount > 0
  }

  /**
   * Returns `true` if the query has at least one observer configured with