rc-js-util/docs/rc-js-util._equality.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)

## \_Equality class

Non-standard equality tests.

**Signature:**

```typescript
export declare class _Equality 
```

## Properties

<table><thead><tr><th>

Property


</th><th>

Modifiers


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

[allEqual](./rc-js-util._equality.allequal.md)


</td><td>

`static`


</td><td>

typeof equalityAllEqual


</td><td>

Returns true if all items are triple equal `===`<!-- -->.


</td></tr>
<tr><td>

[areConsistentlyDefined](./rc-js-util._equality.areconsistentlydefined.md)


</td><td>

`static`


</td><td>

typeof equalityAreConsistentlyDefined


</td><td>

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


</td></tr>
</tbody></table>