import { deepcopy } from "https://deno.land/x/denops_std@v6.4.0/function/mod.ts";
Make a copy of {expr}. For Numbers and Strings this isn't
different from using {expr} directly.
When {expr} is a List a full copy is created. This means
that the original List can be changed without changing the
copy, and vice versa. When an item is a List or
Dictionary, a copy for it is made, recursively. Thus
changing an item in the copy does not change the contents of
the original List.
A Dictionary is copied in a similar way as a List.
When {noref} is omitted or zero a contained List or
Dictionary is only copied once. All references point to
this single copy. With {noref} set to 1 every occurrence of a
List or Dictionary results in a new copy. This also means
that a cyclic reference causes deepcopy() to fail.
Nesting is possible up to 100 levels. When there is an item
that refers back to a higher level making a deep copy with
{noref} set to 1 will fail.
Also see copy().
Can also be used as a method:
GetObject()->deepcopy()