optional_chaining

The following is a list of properties for the function optional_chaining:

Property	Value
`brief`	Optional chaining
`category`	miscellaneous
`description`	Returns undefined if arg1 is null or undefined without evaluating arg2, but otherwise returns evaluated value of arg2.
`functionId`	optional_chaining
`functionLabel`	optional_chaining
`parameters`	[ { "canBeUndefined": true, "name": "arg1" }, { "canBeUndefined": true, "name": "arg2" } ]
`pure`	true
`returns`	{ "description": "Undefined value if arg1 is null or undefined but otherwise evaluated arg2." }