#tap

Returns a function that runs a side-effect and returns the value unchanged.

Useful for debugging inside flow pipelines without breaking the chain.

const process = flow(
  fetchUsers,
  tap(users => console.log('count:', users.length)),
  filterActive,
)

#Usage

#tap<T>(fn: (value: T) => unknown)

Returns a function that runs a side-effect and returns the value unchanged.

Useful for debugging inside flow pipelines without breaking the chain.

import { tap } from 'massaman'
// or:  import { tap } from 'massaman/function'

const process = flow(
  fetchUsers,
  tap(users => console.log('count:', users.length)),
  filterActive,
)

#Parameters

#Returns

a function that runs fn and returns its input unchanged.

(value: T) => T