---
title: "transform(_:)"
framework: tabulardata
role: symbol
role_heading: Instance Method
path: "tabulardata/column/transform(_:)-271dd"
---

# transform(_:)

Applies a transformation to every element that isn’t missing.

## Declaration

```swift
mutating func transform(_ transform: (WrappedElement) throws -> WrappedElement) rethrows
```

## Parameters

- `transform`: A transformation closure.

## See Also

### Transforming a Column

- [transform(_:)](tabulardata/column/transform(_:)-6mrwg.md)