Re: Getting a total from a user defined variable

[Ferhat Kurtulmuş via Digitalmars-d-learn]

On Thursday, 20 April 2023 at 19:41:21 UTC, Joel wrote:

```d
import std;

struct Person {
    string name;
    ulong age;
}

void main() {
    auto p=[Person("Joel", 43), Person("Timothy", 40)];

writeln("Total: ", p.reduce!((a,b) => a.age+b.age)(0UL)); // how do I get the total of ages added together?

}
```

```d
import std;

struct Person {
    string name;
    ulong age;
}

void main() {
    auto p=[Person("Joel", 43), Person("Timothy", 40)];

    writeln("Total: ", p.map!(a => a.age).reduce!"a + b");
}
```