# assertLessThan

Source: https://smartassertions.dev/assertions/assertLessThan/
Index of every page: https://smartassertions.dev/llms.txt

Assert that a numeric value is less than the expected value, with type-narrowing.

## Usage

```ts
import { assertLessThan } from "@kensio/smartass";

const retrievability: unknown = 0.42;

assertLessThan(retrievability, 1);

// retrievability is now narrowed to number | bigint
```

## Source

Source file: [`src/assert/less-than/less-than.assert.ts`](https://github.com/KensioSoftware/smartass/blob/main/src/assert/less-than/less-than.assert.ts)