# textView(_:completions:forPartialWordRange:indexOfSelectedItem:) Returns the actual completions for a partial word. ``` @MainActor optional func textView(_ textView: NSTextView, completions words: [String], forPartialWordRange charRange: NSRange, indexOfSelectedItem index: UnsafeMutablePointer?) -> [String] ``` ## Parameters `textView` The text view sending the message. `words` The proposed array of completions. `charRange` The range of characters to be completed. `index` On return, the index of the initially selected completion. The default is 0, and –1 indicates no selection. ## Return Value The actual array of completions that will be presented for the partial word at the given range. Returning `nil` or a zero-length array suppresses completion. ## Discussion --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)