Tony Pelton wrote:
>> Classes with indexed properties work and look like associative arrays.
>
> how do index'ed properties help you store objects by a key ?
Something like:
type
THash = class(TObject)
protected
function GetItem(AKey: string): string;
procedure SetItem(AKey, NewValue): string;
public
property Items[AKey: string]: string read GetItem
write SetItem default;
end;
The 'default' keyword makes the array usable "on the instance":
var
Hash: THash;
begin
Hash := ...
Hash['sun'] := 'yellow';
Hash['sky'] := 'blue';
{ etc ... }
end.
Micha
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