OnRequestAppend
Type: TSInterface
| PROPERTY | TYPE | DESCRIPTION | 
|---|---|---|
| currentTarget | InfiniteGrid | An InfiniteGrid instance that triggered this event.  | 
| groupKey | string | number | undefined | Last group key.  | 
| nextGroupKey | string | number | undefined | The key of the next group that should replace Virtual Item(placeholder)s.  | 
| nextGroupKeys | Array<string | number> | Array of the following group keys that need to be replaced with Virtual Item(placeholder)s.  | 
| isVirtual | boolean | Whether to request virtual groups corresponding to Virtual Item(placeholder)s.  | 
| wait | () => void | Set to standby to request data.  | 
| ready | () => void | When the data request is complete, it is set to ready state.  |