Method setExtra

packages/core/src/scope.ts:410–414

* Set a single key:value extra entry that will be sent as extra data with the event.

(key: string, extra: Extra)

   * Set a single key:value extra entry that will be sent as extra data with the event.
   */
  public setExtra(key: string, extra: Extra): this {
    this._extra = { ...this._extra, [key]: extra };
    this._notifyScopeListeners();
    return this;
  }

  /**
   * Sets the fingerprint on the scope to send with the events.