Function useSignal

useSignal<T>(
alienSignal: IWritableSignal<T>,
): [T, (val: T | (oldVal: T) => T) => void]
React hook returning [value, setValue] for a given Alien Signal. Uses useSyncExternalStore for concurrency-safe re-renders.
Type Parameters
- T
  The type of the signal value.
Parameters
- alienSignal: IWritableSignal<T>
  The signal to read/write.
Returns [T, (val: T | (oldVal: T) => T) => void]
A tuple [currentValue, setValue].
Example
```
const countSignal = createSignal(0);
function Counter() {
  const [count, setCount] = useSignal(countSignal);
  return <button onClick={() => setCount(count + 1)}>{count}</button>;
}
```
- Defined in index.ts:236