Find index of a key in the list.
Source position: fgl.pp line 334
| public function TFPGMap.IndexOf( | 
| const AKey: TKey | 
| ):Integer; | 
| AKey | 
 | Key value to search. | 
Index of AKey in the list, -1 if not present.
IndexOf returns the index of AKey in the list, or -1 if the key was not found in the list.
None.
| 
 | Find item based on key. | |
| 
 | Find index of data value in the list. |