lib.mapNullable

Apply function if the supplied argument is non-null.

Inputs

f

Function to call

a

Argument to check for null before passing it to f

Examples

mapNullable (x: x+1) null
=> null
mapNullable (x: x+1) 22
=> 23

Noogle detected

• lib.trivial.mapNullable

mapNullable = f: a: if a == null then a else f a;