std.json tree navigation help

[dennis]

On Monday, 27 January 2014 at 23:26:44 UTC, cal wrote:
> I usually end up doing something like this when dealing with 
> std.json:
>
> http://dpaste.dzfl.pl/bcb14d6a;

Cool, thank you.

Your example really helps clear this up for me.  Plus I liked the 
use of the popBackN() method call on the string, I would not have 
know how to use that method in that way either.

Your example also crystallized what the opIndex ref's in the 
JSONValue documentation meant.