Why JavaScript Pages are Crawled but Not Indexed
Why JavaScript pages get crawled but not indexed, covering rendered content, metadata, canonicals, links, noindex rules, quality, and crawl signals.
Articles
Front‑end Development, page 3 of 23
Front‑end web development is my personal niche, it is the art of creating visual and interactive elements for a website, including layout, design, and interactivity, using HTML, CSS, and JavaScript.
Below you will find a subset of articles from my blog specifically about Front‑End Development. This is an area I have worked with for many years, and it has been a regular subject in my writing. There are four hundred seven articles collected together for you below.
Why JavaScript Pages are Crawled but Not Indexed. 
React SPA to Next.js Migration Checklist for SEO and Indexing. React SPA to Next.js Migration Checklist for SEO and Indexing
A React SPA to Next.js SEO migration checklist for preserving indexing, redirects, metadata, rendered HTML, internal links, crawl paths, and launch confidence.
Testing Vue Components with Vue Test Utils. Testing Vue Components with Vue Test Utils
How to test Vue components with Vue Test Utils using realistic interactions, focused assertions, better test boundaries, and less brittle design.
Modified Binary Search: Solving 'Search in Rotated Sorted Array'. Modified Binary Search: Solving 'Search in Rotated Sorted Array'
How to solve Search in Rotated Sorted Array with modified binary search, identifying the sorted half each step and narrowing safely in TypeScript.
Understanding Tail Call Optimisation in JavaScript. Understanding Tail Call Optimisation in JavaScript
Tail call optimisation in JavaScript, why it matters conceptually, and why patchy engine support still makes it unreliable for production recursion.
Understanding WeakMap and WeakSet in JavaScript. Understanding
WeakMapandWeakSetin JavaScriptUnderstand WeakMap and WeakSet in JavaScript, including weak references, metadata storage, private data patterns, memory behaviour, and Map or Set differences.
JavaScript Symbols: When and Why to Use Them. JavaScript Symbols: When and Why to Use Them
JavaScript Symbols explained in plain English, including unique keys, well‑known symbols, hidden metadata, and the cases where they are genuinely useful.
React's Virtual DOM vs. the Real DOM. React's Virtual DOM vs. the Real DOM
React's virtual DOM optimises performance by reducing updates to the real DOM. Here, I explain how it works, how it compares, and why it improves efficiency.
Best Practices for Vue Router in Large Applications. Best Practices for Vue Router in Large Applications
Managing routes in large Vue applications can become challenging. Here, I share practical best practices for structuring Vue Router to keep apps organised.
How JavaScript Handles Memory Management and Garbage Collection. How JavaScript Handles Memory Management and Garbage Collection
Garbage collection in JavaScript frees up unused memory automatically. Here, I explain how it works and how to prevent memory leaks in your applications.
Implementing Server‑Side Rendering (SSR) in Vue. Implementing Server‑Side Rendering (SSR) in Vue
How to implement server‑side rendering in Vue, with a clearer mental model for hydration, data loading, caching, and where SSR actually pays off.
Building Efficient Recursive Functions in JavaScript. Building Efficient Recursive Functions in JavaScript
How to build efficient recursive functions in JavaScript, with better base cases, less repeated work, and a clearer sense of when recursion fits naturally.
The Execution Context in JavaScript. The Execution Context in JavaScript
Execution context defines how JavaScript code runs, from global scope to function calls. Here, I explore how it works in browsers, React, Next.js, and Node.js.
Optimising Performance in React with useMemo and useCallback. Optimising Performance in React with
useMemoanduseCallbackOptimise React performance with useMemo and useCallback only where profiling shows expensive calculations, unstable functions, or avoidable re‑renders.
Optimising Next.js Performance with Incremental Static Regeneration (ISR). Optimising Next.js Performance with Incremental Static Regeneration (ISR)
How ISR improves Next.js performance by mixing static speed with controlled freshness, and where it fits best over fully dynamic rendering for changing content.
Reverse an Array in JavaScript. Reverse an Array in JavaScript
Reversing an array in JavaScript can be done with `.reverse()`, but it mutates the original array. Here, I explore immutable methods and older techniques.
Preventing and Debugging Memory Leaks in React. Preventing and Debugging Memory Leaks in React
Memory leaks in React can cause sluggish performance and excessive memory usage. Here, I explore common causes, how to prevent them, and debugging techniques.
Creating Custom Vue Directives for Enhanced Functionality. Creating Custom Vue Directives for Enhanced Functionality
How to create custom Vue directives for DOM‑level behaviour, without reaching for them when a component, prop, or composable would do better in real interfaces.