rc-js-util
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A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.
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[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [promiseRejectFalse](./rc-js-util.promiserejectfalse.md)
## promiseRejectFalse() function
Returns a Promise of rejection with the supplied error if the `value` is false.
**Signature:**
```typescript
export declare function promiseRejectFalse(value: Promise<boolean> | boolean, error: unknown): Promise<void>;
```
## Parameters
<table><thead><tr><th>
Parameter
</th><th>
Type
</th><th>
Description
</th></tr></thead>
<tbody><tr><td>
value
</td><td>
Promise<boolean> \| boolean
</td><td>
</td></tr>
<tr><td>
error
</td><td>
unknown
</td><td>
</td></tr>
</tbody></table>
**Returns:**
Promise<void>
## Remarks
See [promiseRejectFalse()](./rc-js-util.promiserejectfalse.md)<!-- -->.