Generating Email Addresses from Public Data is Illegal
Using Companies House data to generate speculative email addresses is illegal under GDPR and PECR. I explain why personal email misuse violates privacy laws.
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Articles from more than two decades of building, rebuilding, debugging, and leading web projects.
Generating Email Addresses from Public Data is Illegal. 
Using Vue's suspense for Asynchronous Components. Using Vue's
suspensefor Asynchronous ComponentsHow Vue Suspense handles async components and loading states, where it helps, where it falls short, and what still needs extra care in production.
Declarative vs. Imperative Programming. Declarative vs. Imperative Programming
A technical discussion about the key differences between declarative and imperative programming, focusing on development with JavaScript, ES6, and React.
Prefix and Suffix Products: Solving 'Product of Array Except Self'. Prefix and Suffix Products: Solving 'Product of Array Except Self'
How to solve Product of Array Except Self without division, using prefix and suffix products to keep the logic linear and interview‑safe in TypeScript.
Currying in JavaScript Explained. Currying in JavaScript Explained
Currying transforms functions into a sequence of single‑argument calls. An exploration into implementation, benefits, and comparison to partial application.
LeetCode: Removing the nth Node from the End of a List. LeetCode: Removing the
nthNode from the End of a ListRemove the nth node from a linked list in TypeScript. Compare the two‑pass and pointer‑gap approaches, their edge cases, types and linear‑time complexity.
Building Custom Directives in Angular. Building Custom Directives in Angular
How to build custom directives in Angular when DOM behaviour belongs outside a component, and how to keep selectors and scope readable in larger templates.
Gatsby and Contentful: Why the Pair Worked. Gatsby and Contentful: Why the Pair Worked
Why Gatsby and Contentful worked well together for static sites, what made the model productive, and why teams later reassessed build time and fit.
OWASP Top Ten: What Web Engineers Should Know. OWASP Top Ten: What Web Engineers Should Know
A candid look at the OWASP Top Ten for web engineers, covering the 2021 risks, front‑end boundaries, platform decisions, and practical next steps.
The Palindrome Number Problem: Strings vs. Maths in JavaScript. The Palindrome Number Problem: Strings vs. Maths in JavaScript
Distinguishing two approaches to detect palindrome numbers: the intuitive string method vs. the optimised mathematical technique, highlighting their merits.
Building Design Systems for Web Applications with Figma, Storybook, and npm. Building Design Systems for Web Applications with Figma, Storybook, and npm
Build design systems for web apps with Figma tokens, Storybook components, npm packages, release discipline, supply‑chain care, and team adoption.
Caching Strategies for Data Fetching in Next.js. Caching Strategies for Data Fetching in Next.js
Caching strategies for data fetching in Next.js, including force‑cache, revalidation, stale data trade‑offs, and the debugging traps teams hit in production.
What are Higher‑Order Components in React? What are Higher‑Order Components in React?
Higher‑Order Components (HOCs) in React wrap components to enhance functionality. Here, I explore how HOCs work, common use cases, and when to use them.
Object Control in JavaScript: defineProperties(). Object Control in JavaScript:
defineProperties()Object.defineProperties() gives you fine‑grained control over JavaScript objects. This guide covers descriptors, defaults, and practical use cases.
The JavaScript map() Method. The JavaScript
map()MethodUse JavaScript
map()to transform arrays and render JSX lists, with callback syntax, return values, practical examples, and readability tips in real code.
Angular Standalone Components: Do We Still Need Modules? Angular Standalone Components: Do We Still Need Modules?
Explore Angular standalone components, what they replace, where NgModules still matter, and how to structure modern Angular applications cleanly.
React's Reconciliation Algorithm Explained. React's Reconciliation Algorithm Explained
React's reconciliation algorithm updates the UI by comparing the virtual DOM with the previous state. I explore how it works and why it improves performance.
Finding the Median of Two Sorted Arrays with JavaScript. Finding the Median of Two Sorted Arrays with JavaScript
Find the median of two sorted arrays in JavaScript, from a simple merge approach to edge cases and the logarithmic approach interviewers often expect.
Understanding Event Loop and Concurrency in JavaScript. Understanding Event Loop and Concurrency in JavaScript
The JavaScript event loop explained clearly, including tasks, microtasks, rendering, and why async code can still feel surprising under pressure.
Exploring the call() Method in JavaScript. Exploring the
call()Method in JavaScriptUncover the capabilities of JavaScript's
call()for invoking functions with a custom context, a key technique for effective function and method management.
The Role of Dependency Injection in Angular. The Role of Dependency Injection in Angular
Angular dependency injection explained clearly, from injector scopes and tokens to practical service design, testing boundaries, and application structure.