Return the list of all 1st-level properties in the target object.
object.keys() => Array[String]
// example
do val = { "toto": 1, "tutu": 2 }
do val.keys() // ["toto", "tutu"]
Return the list of all 1st-level-property values in the target object.
object.values() => Array[String]
// example
do val = { "toto": 1, "tutu": 2 }
do val.values() // [1, 2]
Remove the given property from the target object.
object.remove("property") => void
// example
do val = { "toto": 1, "tutu": 2 }
do val.remove("toto") // { "tutu": 2 }
Return the number of 1st-level properties in the target object.
object.length() => Integer
// example
do val = { "toto": 1, "tutu": 2 }
do val.length() // 2
Insert all elements of the parameter object into the target object.
do obj = {"a": 1}
do obj.assign({"b": 2})
say "{{obj}}" // {"a": 1, "b": 2}
