Function tap

tap<T>(fn: (value: T) => void): (value: T) => T
Run a side effect on a value inside a pipeline and pass the value through unchanged. Useful for logging, metrics, or assertions without breaking composition.
Type Parameters
- T
Parameters
- fn: (value: T) => void
Returns (value: T) => T
Example
```
const result = pipe(
    loadUser(id),
    tap((user) => console.log("loaded", user.email)),
    (user) => user.name,
  )
```
- Defined in functions/index.ts:29