object-merge-advanced

Deeply merge JSON-like data structures

Install

This package is pure ESM. If you're not ready yet, install an older version of this program, 12.1.0 (npm i object-merge-advanced@12.1.0).

npm i object-merge-advanced

Quick Take

import { strict as assert } from "assert";

import { mergeAdvanced } from "object-merge-advanced";

assert.deepEqual(
  mergeAdvanced(
    {
      a: ["c"],
      m: "n",
    },
    {
      a: "b",
      k: "l",
    },
    {
      ignoreKeys: ["a"],
    },
  ),
  {
    a: ["c"],
    k: "l",
    m: "n",
  },
);

Documentation

Please visit codsen.com for a full description of the API.

Contributing

To report bugs or request features or assistance, raise an issue on GitHub.

Licence

MIT License.

Copyright © 2010-2025 Roy Revelt and other contributors.