Re: Safe to remove AA elements while iterating over it via .byKeyValue?

[Imperatorn via Digitalmars-d-learn]

On Sunday, 27 September 2020 at 13:02:04 UTC, Per Nordlöw wrote:
Is it safe to remove AA-elements from an `aa` I'm iterating 
over via aa.byKeyValue?

I'm currently doing this:

    foreach (ref kv; aa.byKeyValue)
    {
        if (pred(kv.key))
            aa.remove(kv.key); // ok?
    }
    if (aa.length == 0)
        aa = null;

Is there a better way?

Normally this is not advisable since you're modifying the 
iterated source.

Same thing in C#, there it's a compiler error.