degenerator

npmv7.0.1

Compiles sync functions into async generator functions

Safe to adopt

Yes — degenerator scores well across adoption, maintenance, weight, supply chain, and licensing. 25M downloads per week and 2 known dependents. Last published 157 days ago. 3 releases in the last 2 years.

AAdoption: grade A, Excellent.
25M downloads per week and 2 known dependents.
BMaintenance: grade B, Good.
Last published 157 days ago. 3 releases in the last 2 years.
BWeight: grade B, Good.
Pulls in 6 transitive packages, about 707 KB installed (at least — some of the tree is still being crawled).
BSupply chain: grade B, Good.
This package has a single maintainer (bus factor of 1).
ALicense: grade A, Excellent.
MIT — permissive, with no copyleft found in the dependency tree.

Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.

Install cost

What you actually take on by adding degenerator to a project.

Direct dependencies

Runtime packages this one declares itself.

Total installed

Distinct packages in the full runtime tree, deduplicated the way a package manager would.

707 KB

Install size

Unpacked size of this package plus its entire runtime tree.

Tree depth

Longest resolved dependency chain below this package.

Part of this dependency tree has not been crawled yet, so these figures are a lower bound rather than a final total.

Licenses in the dependency tree

BSD-2-ClauseBSD-3-Clause

Every license you inherit by installing degenerator, not just its own. Check this before a legal review, not after.

Compatibility

Node.js: node >= 20
Module format: ESM only
TypeScript: No bundled types
Install scripts: None

Quick start

A usage example from the degenerator README.

jsFull README ↗

function foo() {
  return a('bar') || b();
}

Dependencies

Declared by degenerator v7.0.1. Runtime dependencies are installed with the package; dev dependencies are not.

Runtime (3)

ast-types ^0.13.4escodegen ^2.1.0 esprima ^4.0.1

Peer (1)

quickjs-wasi ^2.2.0

Dev (6)

@types/escodegen ^0.0.7@types/esprima ^4.0.3@types/node ^22.13.0 quickjs-wasi ^2.2.0tsconfig 0.0.0typescript ^5.1.6

Used by

Popular packages that depend on degenerator.

quickjs-wasinpm

Snapshotable JavaScript runtime via WebAssembly. QuickJS-NG compiled to WASM with snapshot/restore support.

↓ 0/wk◈ 3 dependents⚖ MITTS

pac-resolvernpm

Generates an asynchronous resolver function from a PAC file

↓ 0/wk◈ 1 dependents⚖ MIT

Relationship graph

Dependencies (left) and dependents (right) of degenerator.

degenerator dependencies dependents

Frequently installed together

@types/nodenpm

TypeScript definitions for node

↓ 0/wk◈ 327 dependents⚖ MITTS

esbuildnpm

An extremely fast JavaScript and CSS bundler and minifier.

↓ 242.4M/wk◈ 42 dependents⚖ MITTS

vitenpm

Native-ESM powered web dev build tool

↓ 158.6M/wk◈ 26 dependents⚖ MIT

vitestnpm

Next generation testing framework powered by Vite

↓ 92.7M/wk◈ 129 dependents⚖ MITTS

tinybenchnpm

🔎 A simple, tiny and lightweight benchmarking library!

↓ 0/wk◈ 16 dependents⚖ MITTS

whatwg-fetchnpm

A window.fetch polyfill.

↓ 0/wk◈ 4 dependents⚖ MIT

devaluenpm

Gets the job done when JSON.stringify can't

↓ 0/wk◈ 2 dependents⚖ MITTS

quickjs-wasinpm

Snapshotable JavaScript runtime via WebAssembly. QuickJS-NG compiled to WASM with snapshot/restore support.

↓ 0/wk◈ 3 dependents⚖ MITTS

netmasknpm

Parse and lookup IP network blocks

↓ 19.5M/wk◈ 1 dependents⚖ MITTS

Release history

3 releases in the last two years, typically about 13 days apart.

Recent versions of degenerator
Version	Published	Size	License
7.0.1latest	5 months ago	27 KB	MIT
7.0.0	5 months ago	26 KB	MIT
6.0.0	6 months ago	26 KB	MIT
5.0.1	3 years ago	26 KB	MIT
5.0.0	3 years ago	26 KB	MIT
4.0.4	3 years ago	25 KB	MIT
4.0.3	3 years ago	25 KB	MIT
4.0.2	3 years ago	25 KB	MIT
4.0.1	3 years ago	25 KB	MIT
4.0.0	3 years ago	25 KB	MIT
3.0.4	3 years ago	18 KB	MIT
3.0.3	3 years ago	18 KB	MIT
3.0.2	4 years ago	18 KB	MIT
3.0.1	5 years ago	18 KB	MIT
3.0.0	5 years ago	18 KB	MIT

Overview

degenerator is an npm package that compiles sync functions into async generator functions. It is extremely widely used, with about 25M downloads per week and 2 known dependents in the graph. The latest version is 7.0.1, released under the MIT license.

Who should use it

Teams working in the npm ecosystem who need compiles sync functions into async generator functions and value a battle-tested, widely-adopted solution.

When not to use it

Consider an alternative if you need to have first-class TypeScript types out of the box, or if a more actively-maintained option better fits your npm stack.

Pros

Large, well-established user base (25M weekly downloads).
Clear open-source license (MIT).

Cons

No bundled TypeScript types (may require a separate @types package).

Auto-generated from collected registry metadata. No external claims are inferred.

Maintainers

tootallnate

Frequently asked questions

Should I use degenerator?

How do I install degenerator?

Run `npm install degenerator` to add degenerator to your npm project.

How many dependencies does degenerator have?

degenerator declares 10 direct dependencies and pulls in 6 packages in total once its runtime tree is resolved totalling about 707 KB on disk.

What license is degenerator released under?

degenerator is distributed under the MIT license. Its dependency tree also includes: BSD-2-Clause, BSD-3-Clause.

How popular is degenerator?

degenerator has approximately 24,994,199 downloads per week and 2 known dependent packages.

Is degenerator still maintained?

The most recent release of degenerator (v7.0.1) was published 5 months ago.

Does degenerator run install scripts?

No. degenerator does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.