Object operators
at
pact
(at k o) pact
(at k o)- takes
k:string - takes
o:object - produces a
pact
(at i l) pact
(at i l)- takes
i:integer - takes
o:list - produces
bool
projection
Supported in either invariants or properties.
+
pact
(+ x y) pact
(+ x y)- takes
x:object - takes
y:object - produces
object
Object merge
Supported in either invariants or properties.
drop
pact
(drop keys o) pact
(drop keys o)- takes
keys: [string] - takes
o:object - produces
object
drop entries having the specified keys from an object
Supported in either invariants or properties.
take
pact
(take keys o) pact
(take keys o)- takes
keys: [string] - takes
o:object - produces
object
take entries having the specified keys from an object
Supported in either invariants or properties.
length
pact
(length o) pact
(length o)- takes
o:object - produces
integer
the number of key-value pairs in the object
Supported in either invariants or properties.