lib.mapAttrs'

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

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

Noogle detected

• lib.attrsets.mapAttrs'

mapAttrs' = f: set: listToAttrs (map (attr: f attr set.${attr}) (attrNames set));