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.
Articles, page 4 of 25
Articles from more than two decades of building, rebuilding, debugging and leading web projects.
Understanding Tail Call Optimisation in JavaScript. 
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.
Monotonic Stack: Solving the 'Daily Temperatures' Problem. Monotonic Stack: Solving the 'Daily Temperatures' Problem
Solve Daily Temperatures with a monotonic stack in TypeScript, storing indices to find the next warmer day without repeated scanning and common mistakes.
Generate Parentheses in TypeScript: A Clean Backtracking Walkthrough. Generate Parentheses in TypeScript: A Clean Backtracking Walkthrough
Dive into solving the 'Generate Parentheses' problem using TypeScript. This guide covers the backtracking solution and explains each step in detail.
Implementing a Trie in TypeScript: Solving 'Implement Trie (Prefix Tree)'. Implementing a Trie in TypeScript: Solving 'Implement Trie (Prefix Tree)'
Implement a Trie prefix tree in TypeScript with Map‑based nodes, insert, search, startsWith, shared prefixes, complexity, and alternative child storage.
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.
Solving the LeetCode 'Binary Tree Zigzag Level Order Traversal' Problem. Solving the LeetCode 'Binary Tree Zigzag Level Order Traversal' Problem
Solve Binary Tree Zigzag Level Order Traversal with breadth‑first search, level sizing, alternating output order, and TypeScript implementation details.
Why Next.js Middleware Might Be Unavailable with Pages Router. Why Next.js Middleware Might Be Unavailable with Pages Router
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.
Breadth‑First Search: Solving Binary Tree Level Order Traversal. Breadth‑First Search: Solving Binary Tree Level Order Traversal
Solve Binary Tree Level Order Traversal with breadth‑first search in TypeScript, using a queue, level sizing, edge cases, and cleaner iteration well.
Prefix Sums and Hash Maps: Solving 'Subarray Sum Equals K'. Prefix Sums and Hash Maps: Solving 'Subarray Sum Equals K'
Solve Subarray Sum Equals K with prefix sums and a hash map in TypeScript, including negative numbers, count storage, and why sliding window fails.