ast-monkey/README.md

Traverse and edit AST

<h1 align="center">ast-monkey</h1>

<p align="center">Traverse and edit AST</p>

<p align="center">
  <a href="https://codsen.com/os/ast-monkey" rel="nofollow noreferrer noopener">
    <img src="https://img.shields.io/badge/-codsen-blue?style=flat-square" alt="page on codsen.com">
  </a>
  <a href="https://www.npmjs.com/package/ast-monkey" rel="nofollow noreferrer noopener">
    <img src="https://img.shields.io/badge/-npm-blue?style=flat-square" alt="page on npm">
  </a>
  <a href="https://github.com/codsen/codsen/tree/main/packages/ast-monkey" rel="nofollow noreferrer noopener">
    <img src="https://img.shields.io/badge/-github-blue?style=flat-square" alt="page on github">
  </a>
  <a href="https://npmcharts.com/compare/ast-monkey?interval=30" rel="nofollow noreferrer noopener" target="_blank">
    <img src="https://img.shields.io/npm/dm/ast-monkey.svg?style=flat-square" alt="Downloads per month">
  </a>
  <a href="https://codsen.com/os/ast-monkey/changelog" rel="nofollow noreferrer noopener">
    <img src="https://img.shields.io/badge/changelog-here-brightgreen?style=flat-square" alt="changelog">
  </a>
  <img src="https://img.shields.io/badge/licence-MIT-brightgreen.svg?style=flat-square" alt="MIT Licence">
</p>

## Install

This package is [pure ESM](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c). If you're not ready yet, install an older version of this program, 7.15.0 (`npm i ast-monkey@7.15.0`).

```bash
npm i ast-monkey
```

## Quick Take

```js
import { strict as assert } from "assert";

import { find } from "ast-monkey";

assert.deepEqual(
  find(
    {
      a1: {
        b1: "c1",
      },
      a2: {
        b2: "c2",
      },
      z1: {
        x1: "y1",
      },
    },
    { key: "a*" },
  ),
  [
    {
      index: 1,
      key: "a1",
      val: {
        b1: "c1",
      },
      path: [1],
    },
    {
      index: 3,
      key: "a2",
      val: {
        b2: "c2",
      },
      path: [3],
    },
  ],
);
```

## Documentation

Please [visit codsen.com](https://codsen.com/os/ast-monkey/) for a full description of the API.

## Contributing

To report bugs or request features or assistance, [raise an issue](https://github.com/codsen/codsen/issues/new/choose) on GitHub.

## Licence

MIT License.

Copyright © 2010-2025 Roy Revelt and other contributors.

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