How to pass booleans to functions?

[spookylukey]

The guide talks about the NUMBER function and its useGrouping named parameter:

https://projectfluent.org/fluent/guide/functions.html#number

According to the MDN spec linked, this parameter is a boolean i.e. true or false in JS. However, FTL provides no way to specify booleans. In Javascript, you can get away with passing 0 and 1, and possibly other languages too, but there should be a properly specified way of doing this.

[zbraniecki]

In Rust I just landed support for this and handled it via strings: https://github.com/projectfluent/fluent-rs/blob/master/fluent-bundle/src/types/number.rs#L85-L89