Function formatCurrency

formatCurrency(
    str: string | number,
    scale?: number,
    currency?: string,
    locale?: string,
): string
Formats a numeric value as a localized currency string.
Parameters
- str: string | number
  The numeric value or string to format
- scale: number = 2
  The maximum number of fractional digits (default: 2)
- currency: string = 'AUD'
  The ISO 4217 currency code (default: 'AUD')
- Optionallocale: string
  Optional locale string (defaults to system locale)
Returns string
The localized currency string
Example
```
formatCurrency(1234.5, 2, 'USD'); // '$1,234.50'
```
- Defined in packages/library/src/common/international.library.ts:202