[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Assert](https://evolu.dev/docs/api-reference/common/Assert) › assertSame

```ts
const assertSame: <Expected>(
  actual: unknown,
  expected: Expected,
) => asserts actual is Expected;
```

Defined in: [packages/common/src/Assert.ts:75](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/Assert.ts#L75)

Asserts that two values are the same according to [eqStrict](https://evolu.dev/docs/api-reference/common/Eq/functions/eqStrict).

`eqStrict` uses SameValue equality: it considers `NaN` the same as itself,
distinguishes `0` from `-0`, and compares objects by reference identity.

### Example

```ts

interface User {
  readonly name: string;
}

const user: User = { name: "Ada" };
const value: unknown = user;

assertSame(value, user);
assertType<User, typeof value>();
```