error: Can't use member operator '.' on temporary value of type '<JSON> List'

[ghost]

Working with complex enough JSON:

print(json.field("root").field("usr").field("bin").array().get().length)

What would I need to do?

This worked, but I don't like it:

usr_bin <JSON> List = json.field("root").field("usr").field("bin").array().get()
print(usr_bin.length)

[IsaacShelton]

Yes since the list is a temporary value, it does not work. The .field operator is not currently supported on temporary values (since the result must be mutable), although it would be possible to implement with a little extra work.

[IsaacShelton]

A temporary solution would be just to define your own length method e.g.

func length(this *<$T> List) usize = this.length

and then use the method to achieve the same effect:

print(json.field("root").field("usr").field("bin").array().get().length())