std.map does not take string as input

[Duologic]

In upstream jsonnet, std.map accept strings as input, this is useful when parsing strings. Interestingly it works for std.mapWithIndex in jrsonnet but not for std.map.

std.map(function(x) x, 'string')

Expected result:

[
   "s",
   "t",
   "r",
   "i",
   "n",
   "g"
]

Actual result:

type error: expected array, got string
    argument <arr> evaluation
    a.jsonnet:25:1-34: function <builtin_map> call

[CertainLach]

Why I mark this issue as an enhancement:
In the Jsonnet standard library, many functions don't have their argument types specified and, in reality, work with more things than some may expect.
I.e. there is std.xor/std.xnor, and those functions "work" with strings, which doesn't make much sense: std.xor("a", "b"), std.xnor("c", "c").
When porting such functions to Jrsonnet, I speculate on accepted types; in this case, it only supports arrays now.
In cases when speculated types are not compatible with what the user expects, I fix it.

[Duologic]

No worries, I'm just trying out jrsonnet on different code bases, this also means it comes across all kinds of Jsonnet features.

From my surface level knowledge, I understand that Jsonnet sees all these arguments as 'expressions', regardless of the type.