# `@lazarv/react-server/worker`

Helpers for modules marked with the `"use worker"` directive. On the server runs in a Node Worker Thread; on the client runs in a Web Worker.

## Functions

### `isWorker`

```ts
function isWorker(): boolean;
```

Returns `true` when the calling code is executing inside a worker spawned
by a `"use worker"` module.

- **Server** — checks whether the current Node.js thread is a
  framework-managed Worker Thread.  Returns `false` in Edge builds where
  `"use worker"` functions run in-process.
- **Client** — checks whether the current context is a Web Worker.

Works identically in both server-side and client-side `"use worker"` modules.
Import from `@lazarv/react-server/worker` — this sub-path has no
server-only dependencies and is safe to use in Web Workers.

**Returns** — `true` if inside a `"use worker"` worker, `false` otherwise.

```jsx
"use worker";

import { isWorker } from "@lazarv/react-server/worker";

export async function terminate() {
  if (isWorker()) {
    process.exit(0);
  }
}
```