# less

`import { less } from "destack:math";`

Return a lane mask for less-than comparison.

```ds title="less"
export declare function less<T, const N: usize>(left: Vector<T, N>, right: Vector<T, N>): Mask<N>
```

[language/library/src/math/vector.ds:92](https://github.com/destack-sh/destack/blob/main/language/library/src/math/vector.ds#L92)