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getify
You-Dont-Know-JS
Web Development2013–2025
getify / You-Dont-Know-JS

You-Dont-Know-JS

A book series (2 published editions) on the JS language.

Web DevelopmentLearning & ReferenceSystems & Infrastructure
Explore on GitHubRead Hacker News discussions
119Distinct people
133Mentions
5Explicit recommenders
184.8KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

A book series (2 published editions) on the JS language.

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

I recommend this book https://github.com/getify/You-Dont-Know-JS It discusses great edge cases of JS while explaining why or how come they are like this where possible.

gls2ro used a recommendation phrase. 5 indexed comments match. This is a phrase match, not a verdict.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 5:05:26 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year133 dated mentions

Observed mentions: 2013-11-20 18:38:59 UTC to 2025-03-17 16:51:17 UTC.

01020302013-01-01 00:00:00 UTC to 2014-01-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 comments20132014-01-01 00:00:00 UTC to 2015-01-01 00:00:00 UTC (exclusive): 8 mentions; 1 submissions, 7 comments2015-01-01 00:00:00 UTC to 2016-01-01 00:00:00 UTC (exclusive): 9 mentions; 1 submissions, 8 comments2016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 23 mentions; 3 submissions, 20 comments2017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 35 mentions; 1 submissions, 34 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 13 mentions; 2 submissions, 11 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 8 mentions; 2 submissions, 6 comments20192020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 17 mentions; 3 submissions, 14 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 7 mentions; 0 submissions, 7 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 4 mentions; 2 submissions, 2 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 comments2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20132013-01-01 00:00:00 UTC2014-01-01 00:00:00 UTC110
20142014-01-01 00:00:00 UTC2015-01-01 00:00:00 UTC817
20152015-01-01 00:00:00 UTC2016-01-01 00:00:00 UTC918
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC23320
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC35134
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC13211
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC826
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC17314
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC707
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC202
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC422
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC505
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC110

What Hacker News says

5 sources
fuzzythinker·Aug 9, 2024
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS and https://eloquentjavascript.net/ are the 2 best source for learning JS. If you don't have time to read both, just go with https://eloquentjavascript.net/ If one needs to go further, go through http://superherojs.com/ , just ignore links that are dead.
In Ask HN: Changing my mind about JavaScript

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