You Don't Know JS Yet
Scope & Closures
by Kyle Simpson
Recommended by Sarah Drasner and Una Kravets
Check price on AmazonProof-backed recommendation
Amazon availability
Should I read this?
Recommended by 2 sources and appears in Web Development and Javascript.
Scope & Closures, the second book in the new edition series, dives deep into how and why to organize variables into different buckets of scope, limiting scope overexposure and improving code maintainability. On top of lexical scope, closure empowers functions with memory, preserving variables across calls. Modules leverage scope and closures to en...
Looking for Kindle, hardcover, paperback, or audiobook editions?
Check formats, pricing, and current availability directly.
Why recommended
Recommended by 2 sources and appears in Web Development and Javascript.
Recommended by notable people
People and public figures who have recommended this book.
Recommendation Signals
Recommendation proof is sourced from public posts, interviews, reading lists, and cited references.
Una Kravets
“"Intermediate" frontend dev books I recommend: JS the YDKJS series by @getify CSS CSS Secrets by @LeaVerou | @nerdwithus Great question! I like the @YDKJS series by Kyle Simpson, also Eloquent JavaScript is a great book these are good for understanding vanilla JS, and then from there learning other tools is a little easier.”
View sources (2) ▾80%
Appears In

Not sure if this is the right fit?
Consider Don't Make Me Think by Steve Krug. Recommended by 15 sources.
“Krug’s guide feels like a witty, no-nonsense conversation over coffee. It’s packed with practical advice on why users scan, not read, and how to make navigation obvious. The book shines in its brevity and memorable maxims—you’ll finish it in an afternoon and likely revisit its core principles. However, if you seek deep interaction design theory or modern mobile-first patterns, you’ll find it light. Its dated screenshots and web-centric focus may also irk app-only designers. A quick, opinionated primer, not an exhaustive textbook.”
Similar books
How recommendation signals are reviewed
Each recommendation is collected from a public source — interviews, articles, or curated lists — and linked to its original URL. Books with many verifiable recommendations from respected people rank higher.
You Don't Know JS Yet
View on Amazon →






