function Deno.listen
listen(options: TcpListenOptions & { transport?: "tcp"; }): TcpListener
Listen announces on the local transport address.
```ts
const listener1 = Deno.listen({ port: 80 })
const listener2 = Deno.listen({ hostname: "192.0.2.1", port: 80 })
const listener3 = Deno.listen({ hostname: "[2001:db8::1]", port: 80 });
const listener4 = Deno.listen({ hostname: "golang.org", port: 80, transport: "tcp" });
```
Requires `allow-net` permission.
options: TcpListenOptions & { transport?: "tcp"; }
listen(options: UnixListenOptions & { transport: "unix"; }): UnixListener
Listen announces on the local transport address.
```ts
const listener = Deno.listen({ path: "/foo/bar.sock", transport: "unix" })
```
Requires `allow-read` and `allow-write` permission.
options: UnixListenOptions & { transport: "unix"; }