# marijnh/Eloquent-JavaScript

The sources for the Eloquent JavaScript book

Repository: https://github.com/marijnh/Eloquent-JavaScript
Canonical: https://ross.abutalabs.com/products/eloquent-javascript
Homepage: https://eloquentjavascript.net
Language: JavaScript
License Family: other
Last push: 2026-07-28T08:43:45+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 94, release rhythm 35, longevity 100
- inputs: {"age_days": 4720, "days_push": 36, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3111, forks 802 (observed 2026-08-28T04:07:43.938990+00:00)

## What it is
The source repository for Eloquent JavaScript, a widely used open book teaching JavaScript, programming fundamentals, browser, and Node.js development. It contains CommonMark sources used to build the HTML, PDF, and EPUB editions hosted at eloquentjavascript.net.

## Use cases
- learn javascript from scratch
- free javascript book online
- javascript tutorial with exercises
- learn programming fundamentals
- learn node.js and browser javascript
- contribute to or translate a programming book

## When to choose
- you want a free, in-depth introduction to JavaScript and programming
- you prefer learning through prose plus hands-on projects and exercises
- you want to read or contribute to an open-licensed book

## When to avoid
- you need a JavaScript reference manual rather than a tutorial
- you want a quick cheat-sheet style guide
- you need content for frameworks like React or Vue

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation, markdown
- domain: programming-languages, tutorials, education, web-development
- platform: browser
- tags: javascript-book, programming-tutorial, open-textbook, creative-commons, eloquent-javascript, web-server, nodejs

## Member repositories
- marijnh/Eloquent-JavaScript (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:43.938990+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:26:43.490642+00:00, confidence not recorded.
  - readme: https://github.com/marijnh/Eloquent-JavaScript (fetched 2026-08-28T04:07:43.938990+00:00, sha 9d4eb73920e6)
  - homepage: https://eloquentjavascript.net (fetched 2026-08-29T09:42:05.434090+00:00, sha b385a8b2fc50)
- Data as of 2026-08-30T08:39:29.467469+00:00.