# LengthConstraint

`import { LengthConstraint } from "destack:schema";`

Length constraint for strings and indexed collections.

```ds title="LengthConstraint"
export struct LengthConstraint {
    kind: "length";
    min: usize;
    max: usize;
}
```

[language/library/src/schema/constraint.ds:31:40](https://github.com/destack-sh/destack/blob/main/language/library/src/schema/constraint.ds#L31-L40)

## Members

### `kind: "length"`

The constraint discriminator.

### `min: usize`

Minimum length.

### `max: usize`

Maximum length.