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mapAttrs'

lib.mapAttrs' (Prime)

Docs pulled from | This Revision | about 1 hour ago


Like mapAttrs, but allows the name of each attribute to be changed in addition to the value. The applied function should return both the new name and value as a nameValuePair.

Inputs

f

A function, given an attribute's name and value, returns a new nameValuePair.

set

Attribute set to map over.

Type

mapAttrs' :: (String -> Any -> { name :: String; value :: Any; }) -> AttrSet -> AttrSet

Examples

lib.attrsets.mapAttrs' usage example

mapAttrs' (name: value: nameValuePair ("foo_" + name) ("bar-" + value))
   { x = "a"; y = "b"; }
=> { foo_x = "bar-a"; foo_y = "bar-b"; }
(lib.attrsets.mapAttrs')

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