Re: key membership in multi-dimensional assoc. array

[Paul via Digitalmars-d-learn]

On Thursday, 15 June 2023 at 02:21:16 UTC, Steven Schveighoffer 
wrote:

Not in as short code. You could write a helper though:
```d
auto deepIn(V, K, Keys...)(V[K] aa, Keys keys) if (Keys.length
> 0)
{
   auto v = keys[0] in aa;
   static if(keys.length == 1)
     return v;
   else
     return v ? deepIn(*v, keys[1 .. $]) : null;
}

if(auto v = cubelist.deepIn(xKey, yKey, zKey)) { // v now 
points at the value
}
```

-Steve
Thanks Steve.