apiargs-command-db.collection.mapReduce-field.yaml

arg_name: param
description: |
  A JavaScript function that associates or "maps" a ``value`` with a
  ``key`` and emits the ``key`` and value ``pair``.

  See :ref:`mapReduce-map-mtd` for more information.
interface: command
name: map
operation: mapReduce
optional: false
position: 1
type: function
---
arg_name: param
description: |
  A JavaScript function that "reduces" to a single object all the
  ``values`` associated with a particular ``key``.

  See :ref:`mapReduce-reduce-mtd` for more information.
interface: command
name: reduce
operation: mapReduce
optional: false
position: 2
type: function
---
arg_name: param
description: |
  A document that specifies additional parameters to
  :method:`db.collection.mapReduce()`.
interface: command
name: options
operation: mapReduce
optional: false
position: 3
type: document
---
arg_name: param
name: bypassDocumentValidation
source:
  ref: bypassDocumentValidation
  file: apiargs-dbcommand-insert-field.yaml
operation: mapReduce
interface: command
position: 4
replacement:
  verb: "insert"
...