# deepEquals

```ts
function deepEquals(a, b): boolean;
```

Defined in: [packages/db/src/utils.ts:46](https://github.com/TanStack/db/blob/main/packages/db/src/utils.ts#L46)

Deep equality function that compares two values recursively
Handles primitives, objects, arrays, Date, RegExp, Map, Set, TypedArrays, and Temporal objects
Plain records can compare by keys with keyed class instances and records from other realms.

## Parameters

### a

`any`

First value to compare

### b

`any`

Second value to compare

## Returns

`boolean`

True if the values are deeply equal, false otherwise

## Example

```typescript
deepEquals({ a: 1, b: 2 }, { b: 2, a: 1 }) // true (property order doesn't matter)
deepEquals([1, { x: 2 }], [1, { x: 2 }]) // true
deepEquals({ a: 1 }, { a: 2 }) // false
deepEquals(new Date('2023-01-01'), new Date('2023-01-01')) // true
deepEquals(new Map([['a', 1]]), new Map([['a', 1]])) // true
```