Add '16.nix'

16.nix

@@ -0,0 +1,9 @@
+let
+  list = [ { name = "foo"; value = 123; }
+           { name = "bar"; value = 456; } ];
+  string = ''{"x": [1, 2, 3], "y": null}'';
+in 
+{
+  ex0 = builtins.listToAttrs list == { foo = 123; bar = 456; };
+  ex1 = builtins.fromJSON string == { x = [ 1 2 3 ]; y = null; };
+}