Office.AsyncResultStatus enum   
Specifies the result of an asynchronous call.
Remarks
Returned by the status property of the AsyncResult object.
Examples
// The following example logs selected text in a document to the console.
Office.context.document.getSelectedDataAsync(
    Office.CoercionType.Text,
    {
        valueFormat: Office.ValueFormat.Unformatted,
        filterType: Office.FilterType.All
    },
    (result) => {
        if (result.status === Office.AsyncResultStatus.Failed) {
            console.log(result.error.message);
            return;
        }
        console.log(`Selected data: ${result.value}`);
    }
);
Fields
| Failed | The call failed, check the error object. | 
| Succeeded | The call succeeded. |