rc-js-util/docs/rc-js-util._equality.areconsistentlydefined.md

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) &gt; [rc-js-util](./rc-js-util.md) &gt; [\_Equality](./rc-js-util._equality.md) &gt; [areConsistentlyDefined](./rc-js-util._equality.areconsistentlydefined.md)

## \_Equality.areConsistentlyDefined property

Returns true if both `A` and `B` are both null, undefined or 'defined'. Defined is not null and not undefined.

**Signature:**

```typescript
static areConsistentlyDefined: typeof equalityAreConsistentlyDefined;
```

## Remarks

See [equalityAreConsistentlyDefined()](./rc-js-util.equalityareconsistentlydefined.md)<!-- -->.