Examining a Value's List-ness
Every GCScript value has properties and methods, which are like variables and functions, respectively, that are attached to that value. These will be described more thoroughly in a later section. Properties are like variables that are attached that, among other things, let us examine whether the value is a list, and (if so) its level of nestedness (rank).
value.IsList – This property returns true if value is a list, otherwise false.
value.Rank() – This method returns the rank of the list (or zero if it's not a list). (If you don't remember what a lists' rank is, please review the section, List Values, above.)
Examples
n = 11
n.IsList //
This results in 'false'.
n.Rank() //
This results in '0'.
n = {11, 100, -2}
n.IsList //
This results in 'true'.
n.Rank() //
This results in '1'.
n = {{2, 5}, 0, {400, -3}}
n.Rank() //
This also results in '1'. (Remember
// that a list's rank is the deepest
// level at which every item is a list.)
n = {{2, 5}, {0}, {400, -3}}
n.Rank() //
This results in '2'.
{{2, 5}, {0}, {400, -3}}.Rank() // Note that
we can call methods
// directly on values! (Although it's
// usually pointless.)