# tap

**Kind:** Function

**Source:** [`atloria-monorepo/packages/editor/src/utils/fp.ts`](https://github.com/sherkety/atloria/blob/main/atloria-monorepo/packages/editor/src/utils/fp.ts#L45)

Calls callback with the first argument, and returns it.

## Signature

```ts
function tap(arg: T, proc: (arg: T) => unknown): T
```

## Parameters

| Name | Type |
|---|---|
| `arg` | `T` |
| `proc` | `(arg: T) => unknown` |

**Returns:** `T`