# random(using:) Returns a vector mask with `true` or `false` randomly assigned in each lane, using the given generator as a source for randomness. ``` static func random(using generator: inout T) -> SIMDMask where T : RandomNumberGenerator ``` --- 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)