
Mastering JavaScript Iterators and Generators
A practical guide to JavaScript iterators and generators, with lazy sequences, custom iteration, generator control flow, and the trade‑offs behind both.
Articles from more than two decades of building, rebuilding, debugging, and leading web projects.

A practical guide to JavaScript iterators and generators, with lazy sequences, custom iteration, generator control flow, and the trade‑offs behind both.

Whilst replatforming an app, I came across this limitation in Next.js: you cannot (easily) access search parameters in an SSR layout. Here, I share my solution.

How to choose between a freelancer, agency, or lead‑level contractor for serious web platform work, with a focus on risk, ownership, and delivery.

Flatten arrays in JavaScript with flat(), depth control, recursion, stack‑based helpers, and clear examples of how non‑array values are handled.

How to write effective Angular unit tests that focus on behaviour, TestBed boundaries, realistic setup, and assertions that survive refactoring over time.

master or mainClean up local Git branches safely with commands that keep main or master, explain ‑d versus ‑D, and avoid accidental remote branch mistakes in busy repos.

Find the weekday from a JavaScript date with Date, UTC alternatives, modulo arithmetic, parsing caveats, daylight saving time, and readable day names.

clamp()Use CSS clamp() for fluid typography, spacing, and layouts with clear minimums and maximums, plus media‑query trade‑offs and responsive examples.

instanceofUncover the differences between JavaScript's instanceof and typeof for type checking, with practical examples and insights on when to use each operator.

A practical guide to implementing authentication in Next.js with NextAuth.js, including sessions, callbacks, route protection, and router‑specific trade‑offs.

styled‑componentsUse transient props in styled‑components to keep styling‑only props out of the DOM, clean React output, and support safer component migration work.

reduce() in JavaScriptUnderstand JavaScript reduce() with accumulator patterns, initial values, practical examples, readability trade‑offs, and when reduce() genuinely helps.

How to build a Progressive Web App with Angular, including service workers, caching, offline behaviour, installs, and the trade‑offs behind the defaults.

max()Use CSS max() for responsive sizing, spacing, and layout decisions where the browser should choose the larger value within a fluid design without JavaScript.

{} isn't Equal to {}In JavaScript two empty objects are not equal. One of my go‑to interviewing questions, here I offer an explanation and strategies to compare object contents.

Pure functions make JavaScript easier to test, reason about, and reuse. This guide explains what purity means and why it matters in everyday code.

The Vue 3 Composition API explained with practical TypeScript examples, refs, composables, reactivity, and when the pattern genuinely helps larger components.

min()In CSS, the min() function allows us to set the smallest value from a set as the value of a CSS property. This can be hugely useful in responsive development.

Test JSX‑driven content in Cypress by comparing rendered output, extracting text, handling order, avoiding brittle assumptions, and respecting performance.

Angular change detection explained through zone triggers, OnPush, signals, template cost, manual checks, and practical rendering optimisation at scale.

Why view source stopped being enough for modern web checks, and how rendered HTML, hydration, metadata, schema, crawl paths, and client output changed audits.