# nao-sabemos-js/You-Dont-Know-JS

📗📒 (PT-Br translation) JS Book Series.

Repository: https://github.com/nao-sabemos-js/You-Dont-Know-JS
Canonical: https://ross.abutalabs.com/products/nao-sabemos-js-you-dont-know-js
Homepage: http://www.kickstarter.com/projects/getify/you-dont-know-js-book-series
Language: JavaScript
License: NOASSERTION
License Family: other
Topics: ydkjs, javascript, es6, es7, awesome, book, ebook, translation, portuguese, portuguese-language, portugues, traducao
Last push: 2026-06-15T16:19:17+00:00

## Health v2 (maintenance only)
Score: 71/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 87, release rhythm 35, longevity 100
- inputs: {"age_days": 3913, "days_push": 79, "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 5849, forks 852 (observed 2026-08-28T04:09:31.610703+00:00)

## What it is
A Portuguese (Brazilian) translation of the 'You Don't Know JS' book series by Kyle Simpson, authorized by the author and maintained by volunteers. It provides free online access to the full first edition covering JavaScript's core mechanisms.

## Use cases
- learn javascript deep concepts in portuguese
- read you don't know js book series free online
- study javascript closures and scopes in pt-br
- contribute to translating javascript books
- understand es6 features in portuguese

## When to choose
- you're a Portuguese speaker wanting to deeply learn JavaScript fundamentals
- you want free access to the YDKJS first edition
- you want to help translate technical books

## When to avoid
- you need the latest second edition content
- you need English-language material
- you want redistributable or sellable content (rights reserved to author and O'Reilly)

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation
- domain: education, programming-languages, tutorials
- platform: -
- tags: javascript, ebook, translation, portuguese, ydkjs, book-series, web-server

## Member repositories
- nao-sabemos-js/You-Dont-Know-JS (main) score 71

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:31.610703+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 2026-08-29T17:51:54.230729+00:00, confidence not recorded.
  - readme: https://github.com/nao-sabemos-js/You-Dont-Know-JS (fetched 2026-08-28T04:09:31.610703+00:00, sha 73d9eaa91e5b)
- Data as of 2026-08-30T08:39:29.467469+00:00.