How do I read official documentation without getting lost?
"Read the docs" is the most common advice in programming and the least explained. Official documentation is written in several distinct genres, and knowing which genre you're holding is most of the skill.
The four genres
Tutorials teach by walking you through building something. They're for your first contact with a technology, and they go stale fastest.
Guides explain a topic conceptually — how layout works, how an app lifecycle flows. Read these when something works but you don't understand why.
References document every element, function, and option exhaustively. They're for looking things up, not reading cover to cover. MDN Web Docs is primarily this genre for the web platform, with guides woven in; the Apple Developer Documentation plays the same role for macOS and iOS frameworks.
Specifications define exact behavior for people implementing the technology — browser makers, compiler authors. The WHATWG HTML Living Standard and ECMA-262 are specifications. They are the final authority, and they are dense by design.
Most beginner frustration comes from genre mismatch: trying to learn from a reference, or looking up a quick answer in a specification.
A method that works
Arrive with a question. Documentation rewards specific questions ("what arguments does this function take?") and punishes vague ones ("teach me JavaScript"). If your question is vague, you want a tutorial or guide, not a reference.
Read the first paragraph and the examples, skip the middle, return as needed. Reference pages front-load a summary and usually include examples near the top. The exhaustive parameter tables in between matter only when your case is unusual.
Check the compatibility or availability notes. Web references state browser support; Apple's framework pages state OS-version availability. A perfect answer for a platform you can't target is not an answer.
Trust the hierarchy of authority. Blog posts and forum answers can be outdated or wrong. Official references are occasionally behind. Specifications are definitive. When sources disagree about behavior, resolve upward: reference beats blog post, spec beats reference. (This is why knowing what ECMA-262 is matters even if you never read it.)
Keep a docs tab open while you work. The people who "know the docs" don't have them memorized; they've just looked things up so many times that navigation became fast. Looking things up is the professional behavior, not a beginner behavior you grow out of.
When to escalate to the specification
Rarely — but there are legitimate triggers: two browsers disagree; a reference is ambiguous about an edge case; you need to know what's guaranteed versus what merely happens to work today. In those moments, search the spec for the exact element or method name and read only that section. Specification prose is dense but self-contained; a single section is manageable even when the whole document isn't.
The mindset shift
Stop treating documentation as a wall of text guarding the knowledge, and start treating it as a map you consult mid-journey. You don't read maps cover to cover either. Pick one home reference for your platform — MDN for the web, Apple's documentation for its platforms — learn its layout, and let every real question you answer there make the next lookup faster.