Rust function to convert numbers into English words using the short scale.
Supports positive integers from 0 to 999999999999999_999.
rust
pub fn shortscale(num: u64) -> String
rust
assert_eq!(
shortscale(420_000_999_015),
"four hundred and twenty billion nine hundred and ninety nine thousand and fifteen"
);
For the JavaScript version see jldec/shortscale.