---
title: evaluate()
framework: foundation
role: symbol
role_heading: Instance Method
path: foundation/nspositionalspecifier/evaluate()
---

# evaluate()

Causes the receiver to evaluate its position.

## Declaration

```swift
func evaluate()
```

## Discussion

Discussion Calling insertionContainer, insertionKey, insertionIndex, or insertionReplaces also causes the receiver to be evaluated, if it hasn’t already been evaluated.