Articles

JavaScript & Frameworks

TypeScript, async patterns, browser APIs, React patterns, state, data fetching and how Next.js, Astro, SvelteKit and friends compare.

React Error Boundary and Suspense for Resilient UIs

Design React loading and failure states that preserve useful content, isolate broken widgets, and offer reliable recovery without turning every render into a full-page spinner.

Inside this article

Start with independent regions
Distinguish pending work from errors
Compose boundaries around meaningful content
Preserve continuity while loading

Daniel KimRead the article

JavaScript & Frameworks

Astro vs Next.js for Content-Heavy Sites

Compare Astro and Next.js through publishing workflows, interactive features, preview requirements, and deployment constraints before committing your content site to either framework.

Sofia Marchetti

JavaScript & Frameworks

useEffect Cleanup and Dependencies: Fix Loops in React

Learn when React effects are necessary, how dependency arrays work, and how to prevent stale closures, duplicate subscriptions, and runaway render loops.

Sofia Marchetti

JavaScript & Frameworks

JavaScript Array Methods: map, filter, reduce Explained

Choose array methods by intent, avoid shared-reference bugs, and use toSorted and toSpliced to transform collections without mutating their original order.

Daniel Kim

JavaScript & Frameworks

ES Modules vs CommonJS: Choosing and Migrating

Understand how ES modules and CommonJS load code, resolve files, and share exports. Use a practical migration checklist to avoid Node.js and TypeScript integration traps.

Inside this article

Establish the module boundary first
Understand exports, bindings, and execution
Make Node's file classification explicit
Cross the interoperability boundary deliberately

Sofia MarchettiRead the article

JavaScript & Frameworks

TypeScript Discriminated Unions for UI State

Replace fragile boolean flags with discriminated unions, exhaustive switches, and explicit transitions that make loading, success, and failure states easier to maintain.

Daniel Kim

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