Re: float price; if (price == float.nan) { // initialized } else { // uninitialized } ... valid ?

[Dennis via Digitalmars-d-learn]

On Wednesday, 30 June 2021 at 03:52:51 UTC, someone wrote:
at least I can do nulls with strings since it a class :)

A `string` is not a class but an array, an `immutable(char)[]`. 
For arrays, `null` is equal to an empty array `[]`.
```D
void main() {
    string s0 = null;
    string s1 = [];
    assert(s0 == s1);
    assert(s0.length == 0); // no null dereference here
}
```