---
title: "isLessThan(_:)"
framework: objectivec
role: symbol
role_heading: Instance Method
path: "objectivec/nsobject-swift.class/islessthan(_:)"
---

# isLessThan(_:)

Returns a Boolean value that indicates whether the receiver is less than another given object.

## Declaration

```swift
func isLessThan(_ object: Any?) -> Bool
```

## Parameters

- `object`: The object with which to compare the receiver.

## Return Value

Return Value YES if the receiver is less than object, otherwise NO.

## Discussion

Discussion During the evaluation of an NSWhoseSpecifier object that contains a test whose operator is NSLessThanComparison, an isLessThan(_:) message may be sent to each potentially specified object, if the potentially specified object does not implement a scriptingIsLessThan(_:) method and the object being tested against does not implement a scriptingIsGreaterThanOrEqual(to:) method. The default implementation for this method provided by NSObject method returns YES if a compare: message sent to the same object would return NSOrderedAscending.