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# currency(code:)

Returns a format style to use decimal currency notation.

```
static func currency(code: String) -> Self
```

## Parameters

`code`

The currency code to use, such as `EUR` or `JPY`. See ISO-4217 for a list of valid codes.

## Return Value

A decimal format style that uses the specified currency code.

## Discussion

Use the dot-notation form of this method when the call point allows the use of [`Decimal.FormatStyle`](/documentation/Foundation/Decimal/FormatStyle). You typically do this when calling the [`formatted(_:)`](/documentation/Foundation/Decimal/formatted(_:)) method of [`Decimal`](/documentation/Foundation/Decimal).

The following example creates an array of decimals, then uses [`formatted(_:)`](/documentation/Foundation/Decimal/formatted(_:)) and the currency style provided by this method to format the values as US dollars.

```swift
let nums: [Decimal] = [100.01, 1000.02, 10000.03, 100000.04, 1000000.05]
let currencyNums = nums.map { $0.formatted(
    .currency(code:"USD")) } // ["$100.01", "$1,000.02", "$10,000.03", "$100,000.04", "$1,000,000.05"]
```

---

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