On Tuesday, 27 December 2022 at 15:09:11 UTC, Sergei Nosov wrote:
Consider, I have the following code:
```d
auto a = [3, 6, 2, 1, 5, 4, 0];
auto indicies = iota(3);
auto ai = indexed(a, indicies);
ai = indexed(ai, iota(2));
writeln(ai);
```
Why not use `filter()`, isn't it important to filter out what's
in range?
```d
import std.algorithm;
import std.stdio;
import std.range;
int[] a = [3, 6, 2, 1, 5, 4, 0];
auto indicies = iota(3);
auto ai = a.filter!(e => e >= indicies.front
&& e <= indicies.back);
ai.writeln; // [2, 1, 0]
```
SDB@79
