
reduce() in JavaScript
Understand JavaScript reduce() with accumulator patterns, initial values, practical examples, readability trade‑offs, and when reduce() genuinely helps.
Articles from more than two decades of building, rebuilding, debugging, and leading web projects.

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.

Validate mixed parentheses and brackets in TypeScript with a stack, check nesting order, and see why separate counters and two pointers are not enough.

calc()A discussion on how to use CSS calc() for dynamic calculations directly within your styles. Learn to mix units, perform calculations, and improve responsivity.

.then() in Modern JavaScript.then() still matters in modern JavaScript. This guide explains promise chaining, return values, and why Promise.prototype.then() remains useful.

Understanding stopPropagation and preventDefault is key to handling events in JavaScript. Here, I explore their differences and when to use each.

An exploration of solutions to the 'Letter Combinations of Phone Number' problem using front‑end and TypeScript: recursion, backtracking, and iteration.

vh and vwUse JavaScript and CSS custom properties for viewport sizing, with working CSS fallbacks and clear limits around browser controls, keyboards, and scrollbars.

Add seeded randomisation to an SSR Gatsby project, keeping content order deterministic across builds whilst still rotating destination‑style content.

Convert Roman numerals to integers in JavaScript, covering subtractive notation, invalid input caveats, and a clear TypeScript implementation.

Convert integers to Roman numerals in JavaScript, covering symbol rules, greedy matching, edge cases, and a clear TypeScript implementation.

Automate copyright year updates across JavaScript, React, Angular, Vue, jQuery, PHP, and WordPress so footers do not go stale each January across stacks.

setInterval()A discussion about using JavaScript's setInterval for repetitive tasks. Manage intervals effectively and understand best practices for time‑bound executions.