Mutation vs. Immutability in JavaScript Arrays and Objects
Mutation and immutability in JavaScript explained through arrays, objects, push(), splice(), shared references, UI bugs, and safer update patterns.
Articles, page 21 of 25
Articles from more than two decades of building, rebuilding, debugging and leading web projects.
Mutation vs. Immutability in JavaScript Arrays and Objects. 
Array.includes() vs. indexOf() in JavaScript. Array.includes()vs.indexOf()in JavaScriptCompare Array.includes() and indexOf() in JavaScript, including boolean checks, returned positions, NaN handling, readability, and membership tests.
React Portals Explained. React Portals Explained
React Portals explained with modals, overlays, and tooltips, including DOM placement, event bubbling, accessibility concerns, and when portals help.
Enhancing User Experience with CSS and JavaScript Animations. Enhancing User Experience with CSS and JavaScript Animations
CSS and JS animations enhance user experience by adding smooth transitions and interactivity. Here, I explore best practices, performance, and the real‑world.
CSS Animations: Transitions vs. Keyframes. CSS Animations: Transitions vs. Keyframes
Compare CSS transitions and keyframe animations, including hover effects, loading states, timing control, performance, and when each approach fits.
React Fragments Explained. React Fragments Explained
React Fragments explained through empty tags, keyed fragments, semantic markup, unnecessary wrapper divs, grouped list output, and layout side effects.
Building Responsive Navigation with CSS and JavaScript. Building Responsive Navigation with CSS and JavaScript
Understanding Media Queries in CSS. Understanding Media Queries in CSS
Understand CSS media queries for responsive design, including screen conditions, mobile‑first and desktop‑first approaches, breakpoints, and device traits.
Setting Front‑End Performance Budgets. Setting Front‑End Performance Budgets
Set front‑end performance budgets for page weight, scripts, images, requests, Core Web Vitals, and user experience before delivery pressure erodes them.
Optimising Website Performance with HTML, CSS, and JavaScript. Optimising Website Performance with HTML, CSS, and JavaScript
Boost website performance with HTML, CSS & JavaScript optimisation. I explore techniques: lazy loading, critical CSS, script deferment for faster load times.
Mastering CSS Animations with @keyframes. Mastering CSS Animations with
@keyframesCSS `@keyframes` enables animations by defining style changes over time. Here, I explain how it works with examples, properties, and cross‑browser support.
Extends and super in JavaScript Classes. extendsandsuperin JavaScript Classes`Extends` and `super` in JavaScript classes explained with inheritance examples, constructor rules, method overriding, and the trade‑offs of class hierarchies.
JavaScript Essentials for Freelance Web Developers. JavaScript Essentials for Freelance Web Developers
This guide explores JavaScript essentials for freelance web developers. It covers fundamental concepts, practical examples, and tips for mastering JavaScript.
Some of the Most‑Misunderstood Properties in CSS. Some of the Most‑Misunderstood Properties in CSS
Whilst understanding any computing language comes with practice and exposure, there are some areas of CSS that can flummox even the most seasoned of developers.
::Before and ::after Pseudo‑Elements in CSS. ::beforeand::afterPseudo‑Elements in CSSUsing the `:before` and `:after` pseudo‑elements in CSS for styling and content insertion. Here, I cover syntax, practical examples, and best practices.
Promise.all() vs. Promise.race() in JavaScript. Promise.all()vs.Promise.race()in JavaScript`Promise.all()` vs. `Promise.race()` in JavaScript, with async examples, error behaviour, timeouts, practical use cases, and common mistakes in real code.
Generators in JavaScript: A Beginner's Guide. Generators in JavaScript: A Beginner's Guide
JavaScript generators explained for beginners, covering generator function syntax, yield, paused execution, iteration patterns, and where generators still help.
Building Polyfills for JavaScript Array and String Methods. Building Polyfills for JavaScript Array and String Methods
Polyfills replicate modern JavaScript methods for compatibility. Here, I explain polyfills and show how to build key examples in unsupported environments.
JavaScript Error Handling Patterns. JavaScript Error Handling Patterns
Error handling in JavaScript is vital for building robust applications. Here, I explore modern patterns like try‑catch, async/await, and global error handlers.
The CSS overflow Property. The CSS
overflowPropertyUnderstand the CSS overflow property, including visible, hidden, scroll, auto, x and y control, scrollbars, accessibility, and mobile quirks safely.
The Difference Between JavaScript Callbacks and Promises. The Difference Between JavaScript Callbacks and Promises
JavaScript callbacks execute functions after tasks, while promises offer structured asynchronous handling. I explore their differences, benefits, and uses.