Why is D unpopular, redux.

[deadalnix]

On Tuesday, 24 May 2022 at 15:15:13 UTC, FeepingCreature wrote:
> Javascript, yes:
>
> ```
> function foo() {
>     var cb = null;
>     for (var i = 0; i < 10; i++) {
>         if (!cb) {
>             cb = function() { console.log("Hello World " + i); 
> };
>             cb();
>         }
>     }
>     cb();
> }
> foo();
> ```
> Hello World 0
> Hello World 10

Now try this and tell me how it goes:

```
function foo() {
     var cb = null;
     for (var i = 0; i < 10; i++) {
         let n = i;
         if (!cb) {
             cb = function() { console.log("Hello World " + n); };
             cb();
         }
     }
     cb();
}
foo();
```

If you are capturing i and mutating it, then i is going to be 
mutated at the end. It says nothing about captures.