hasAttr
lib.attrsets.hasAttr
Primop
Docs pulled from | This Revision | 12 minutes ago
Takes 2 arguments
s, set
hasAttr
returns true
if set has an attribute named s, and
false
otherwise. This is a dynamic version of the ?
operator,
since s is an expression rather than an identifier.
Noogle also knows
Aliases
Detected Type
hasAttr :: String -> AttrSet -> Bool