Checks if the currency is supported by the current environment.
The currency code (for instance "USD", "EUR", "JPY", etc.).
true if supported, false otherwise.
1.0.0
Browser support: Chrome 99, Edge 99, Firefox 93, Opera 85, Safari 15.4, Node 18, Deno 1.19, Bun 1
Checks if the currency is supported by the current environment.