10 posts.
A complete beginner's guide to JavaScript arrays — creation, indexing, the essential mutation methods, iteration, map/filter/reduce, and a first look at spread and destructuring.
A complete beginner's guide to control flow in JavaScript — if/else, switch, for, while, for...of, break and continue, and the loops you should reach for first.
Every JavaScript data type explained — strings, numbers, booleans, null, undefined, symbols, bigints, and objects — with practical examples and how to check types correctly.
A complete beginner's guide to numbers in JavaScript — arithmetic, the Math object, rounding, formatting, NaN, Infinity, and the floating-point quirk every developer must know.
A practical guide to JavaScript objects — creation, access, mutation, iteration, shorthand syntax, destructuring, spread, and how object references actually work.
A complete beginner's guide to JavaScript operators — arithmetic, comparison, logical, assignment, and the modern nullish coalescing and optional chaining operators.
Run JavaScript in your browser's console, install Node.js, set up VS Code, and write three working first programs — all in under fifteen minutes.
A practical guide to JavaScript strings — template literals, indexing, the essential methods, immutability, and the modern ways to slice, search, and transform text.
A practical guide to declaring variables in modern JavaScript — when to use const, when to use let, why var still exists, and the naming rules that keep your code readable.
A clear, professional introduction to JavaScript — what it is, how it runs in browsers and on servers, why it became the most-used language on Earth, and what you can build with it.