json/docs/mkdocs at 7cbfd60e2d17c01e7d473a122d160d6dfdcd3a0c - json

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Niels Lohmann 7cbfd60e2d Point users to update(…, true), JSON Pointer defaults, and built-in std::optional

A code search of client code found many hand-written versions of
functionality the library already has: recursive object merges
(update(j, true) since 3.10.5), dotted-path getters (value() and
contains() with a JSON Pointer), get_or helpers (value() throws for a
member that is present but null), and adl_serializer specializations
for std::optional (supported since 3.12.0).

- modifying_values.md: describe both modes of update(), add a
  defaults + user settings recipe, and stop recommending Merge Patch
  for recursive merges.
- merge_patch.md: note that null deletes keys, so a merge patch is not
  a general deep merge; link update().
- default_value.md: add "Nested values" (value/contains with a JSON
  Pointer, building a pointer from a dotted path with operator/=) and
  a warning that null and mistyped members are not missing.
- value.md: note that a null member is converted, not replaced by the
  default.
- json_pointer.md: link value/contains/at with JSON Pointers.
- arbitrary_types.md: note that std::optional needs no serializer.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

2026-10-10 16:55:34 +02:00

docs

Point users to update(…, true), JSON Pointer defaults, and built-in std::optional

2026-10-10 16:55:34 +02:00

hooks

Review and extend the documentation, and check it in CI (#5638 )

2026-10-02 11:32:15 +02:00

includes

Add BON8 support (#2998 )

2026-09-27 16:56:21 +02:00

scripts

Generate the docset index and pages with Python (#5799 )