@thi.ng/diff

[!NOTE] This is one of 209 standalone projects, maintained as part of the @thi.ng/umbrella monorepo and anti-framework.

🚀 Please help me to work full-time on these projects by sponsoring me on GitHub. Thank you! ❤️

• About
• Status
• Installation
• Dependencies
• API
• Authors
• License

About

Customizable diff implementations for arrays (sequential) & objects (associative), with or without linear edit logs.

Status

STABLE - used in production

Search or submit any issues for this package

Installation

yarn add @thi.ng/diff

ESM import:

import * as diff from "@thi.ng/diff";

Browser ESM import:

<script type="module" src="https://esm.run/@thi.ng/diff"></script>

JSDelivr documentation

For Node.js REPL:

const diff = await import("@thi.ng/diff");

Package sizes (brotli'd, pre-treeshake): ESM: 1.05 KB

Dependencies

• @thi.ng/api
• @thi.ng/equiv

Note: @thi.ng/api is in most cases a type-only import (not used at runtime)

API

Generated API docs

import { diffArray } from "@thi.ng/diff";

// diff w/ default diff mode
diffArray([1, 2, 3], [1, 2, 4], "full");
// {
//     distance: 2,
//     adds: { 2: 4 },
//     dels: { 2: 3 },
//     const: { 0: 1, 1: 2 },
//     linear: [0, 0, 1,  0, 1, 2,  -1, 2, 3,  1, 2, 4]
// }

Authors

• Karsten Schmidt

If this project contributes to an academic publication, please cite it as:

@misc{thing-diff,
  title = "@thi.ng/diff",
  author = "Karsten Schmidt",
  note = "https://thi.ng/diff",
  year = 2016
}

License

© 2016 - 2025 Karsten Schmidt // Apache License 2.0