Docs on how to use variables in translation strings

[halafi]

If I have a key for example "Foo {amount} bars" that should dynamically be resolved as:

Foo 1 bars Foo 2 bars ... etc.

depending on the variable passed there is no documentation / clarity whether this is supported

[halafi]

I was able to achieve this with:

$_({
        id: "Foo {count} bars",
        values: { count: 7},
      })

however I think this still belong in the docs