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[Home](./index.md) &gt; [rc-js-util](./rc-js-util.md) &gt; [TNeverPredicate](./rc-js-util.tneverpredicate.md)

## TNeverPredicate type

If TTest is never, return TTrue, else TFalse.

**Signature:**

```typescript
export type TNeverPredicate<TTest, TTrue, TFalse> = (() => TTest) extends () => never ? TTrue : TFalse;
```