---
title: "init(mappingTransform:)"
framework: appintents
role: symbol
role_heading: Initializer
path: "appintents/lessthanorequaltocomparator/init(mappingtransform:)"
---

# init(mappingTransform:)

Declares support for Comparable <= comparisons between a property and user-supplied values.

## Declaration

```swift
init(mappingTransform: @escaping (PropertyType.UnwrappedType) -> ComparatorMappingType)
```

## Parameters

- `mappingTransform`: Closure that transforms the user-supplied value into the ComparatorMappingType output type.

## See Also

### Creating a comparator

- [init(withResolvers:mappingTransform:)](appintents/lessthanorequaltocomparator/init(withresolvers:mappingtransform:).md)
- [init(withResolvers:mappingTransform:)](appintents/lessthanorequaltocomparator/init(withresolvers:mappingtransform:).md)