ast-compare

Compare anything: AST, objects, arrays, strings and nested thereof

Install

This package is pure ESM. If you're not ready yet, install an older version of this program, 2.1.0 (npm i ast-compare@2.1.0).

npm i ast-compare

Quick Take

import { strict as assert } from "assert";

import { compare } from "ast-compare";

// Find out, does an object/array/string/nested-mix is a subset or equal to another input:
assert.equal(
  compare(
    {
      a: {
        b: "d",
        c: [],
        e: "f",
        g: "h",
      },
    },
    {
      a: {
        b: "d",
        c: [],
      },
    },
  ),
  true,
);

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