Section 01
JavaScript
The language itself — JS, TypeScript, and the features worth knowing.
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TypeScript vs JavaScript: When Types Earn Their KeepTypes cost keystrokes and buy confidence. A practical guide to when that trade pays off — and when plain JS wins.
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The Modern JavaScript Actually Worth KnowingPast the framework churn — the language features that changed how we all write JS.
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A Mental Model for Async/AwaitPromises, the event loop, and why your code runs in an order that surprises you.
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JavaScript's Good Parts, 2026 EditionWhat to reach for now, what to retire, and the sharp edges still worth avoiding.