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Why instanceof Promise Is Not a Reliable Check in JavaScript

Why instanceof Promise Is Not a Reliable Check in JavaScript

When working with asynchronous programming in JavaScript, it is tempting to check whether a value is a Promise using instanceof Promise. At first glance, this seems logical—after all, promises are the foundation of async/await, so why not verify them directly? But here’s the catch: instanceof Promise is

When (and Why) to Stick With React — Even If Solid Looks Better

When (and Why) to Stick With React — Even If Solid Looks Better

There’s no denying it: Solid is better than React in several technical aspects. It boasts fine-grained reactivity, smaller bundle sizes, and better runtime performance out of the box. If you compare benchmarks, Solid almost always comes out ahead. But here’s the catch: being technically better does not automatically

Why Developers Still Write if/else When match Feels Better

Why Developers Still Write if/else When match Feels Better

When you first discover functional-style pattern matching in JavaScript or TypeScript — something like: match({ A: (a) => handleA(a), B: (b) => handleB(b), })(props) —it’s hard not to wonder: why are people still writing endless if/else or switch statements? The elegance of a declarative match approach can

TypeScript, Discriminated Unions, and the “as” Prop Problem

TypeScript, Discriminated Unions, and the “as” Prop Problem

If you’ve been working with TypeScript for a while, you’ve probably run into situations where the compiler feels a little too conservative. One common case is when working with discriminated unions and destructuring. It looks neat at first glance: type Action = | { kind: 'A'; payload: number } | { kind:

Measuring Progress with Percentages in JavaScript: A Practical Guide

Measuring Progress with Percentages in JavaScript: A Practical Guide

When building applications that track user progress—such as to-do lists, learning platforms, or project management dashboards—you’ll often need to calculate the percentage of tasks completed. This percentage provides a clear, user-friendly way to communicate progress at a glance. Let’s break down the logic, explore how to

Mastering PHP’s Null Coalescing Operator in Everyday Development

Mastering PHP’s Null Coalescing Operator in Everyday Development

One of the most underrated yet highly practical features in modern PHP is the null coalescing operator (??). At first glance it looks like a shorthand for a conditional, but in real-world development it becomes a key tool for defensive coding and cleaner syntax. The Basics The operator works like this:

Visual Studio vs Visual Studio Code: Clearing Up the Confusion

Visual Studio vs Visual Studio Code: Clearing Up the Confusion

It’s surprising how often developers mix up Visual Studio and Visual Studio Code (VS Code). At first glance, the names sound almost identical, and their logos look like two color variants of the same design. But in reality, these two tools are very different products with different purposes, audiences,