...index);  // return a new container

  // v.s.
  aa.remove(key);  // return bool (if it's...

...index);  // return a new container

  // v.s.
  aa.remove(key);  // return bool (if it's...

...update` is a perfect example of this:
```
aa.update(
  "key",
  () => 0,
  (int a){},
);
```
This is...

...foreach (v; aa)` is supposed to run over values and `foreach (k, v; aa)` over...

...following compiles:

```d
void main() @nogc
{
    int[string] aa;
    foreach (k, v; aa)
        assert(v);
}
```

...use this interface in user code too: aa.byKeyValue().  The non-range interface is really...

...doesn’t really support key–value pair iteration. An AA can be iterated by values or keys...

Probaly history, ranges were d2, aa's in d1 look basically the same https://digitalmars...

...Is really there any reason for a `foreach` over an AA not to be `nothrow`?

...dynamic array.

Another issue is with an AA of static array key type: https://forum...