# dateAfter

Source: https://smartassertions.dev/matchers/dateAfter/
Index of every page: https://smartassertions.dev/llms.txt

Matcher for a Date holding an instant later than the given one.

Matchers are applied through assertObjectMatches, where they narrow the corresponding property type.

## Usage

```ts
import { assertObjectMatches, dateAfter } from "@kensio/smartass";

const value: unknown = {
  dueAt: new Date("2026-06-01T00:00:00.000Z"),
};

assertObjectMatches(value, {
  dueAt: dateAfter(new Date("2026-01-01T00:00:00.000Z")),
});

// value is now narrowed to an object with a Date dueAt
// {
//   dueAt: Date;
// }
```

## Source

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