In the Service Portal, the scripting environment is different from the ServiceNow backend.
Portal widgets utilize AngularJS, which introduces a model-view-controller approach to passing data and handling what is presented to the end user.
Sometimes it is necessary, like on the backend, to access server-side data from arbitrary records in response to form behavior, button clicks, or other client-side triggers. One way to do this without requiring a page reload is to use the “get” function.
