JavaScript
JavaScript Closures Explained: What They Are and Why You Need Them
Closures are one of those JavaScript concepts that every developer eventually has to wrestle with. At its simplest, a closure is the combination of a funct…
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State Management in Vanilla JavaScript
Frameworks like React have popularized the concept of 'state'—the data that changes over time. But you can implement state management in vanilla JavaScri…
JavaScript
Introduction to Web Components
Before React and Vue, there was a native browser standard for reusable components: Web Components. They consist of three main technologies: Custom Elements…
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Understanding 'this' in JavaScript
The 'this' keyword in JavaScript is notoriously confusing because its value depends on how the function is called. In the global context, this refers to th…
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Building a Simple REST API with Express.js
Once I was comfortable with frontend JavaScript, I wanted to build my own backend. Express.js is the most popular framework for Node.js. It's minimalist an…
JavaScript
Understanding HTTP Requests: GET, POST, PUT, DELETE
When you type a URL in the browser, you're making a GET request. It asks the server, 'Please give me this resource.' When you submit a login form, you're o…
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Debugging JavaScript with Console Methods
Most beginners start with console.log('here') to debug. While that works, the browser DevTools console has much more to offer. console.table() is a lifesav…
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Async/Await: Modern JavaScript Promises
When I first encountered Promises, the .then().catch() syntax felt messy, especially for complex chains. Enter Async/Await, a syntactic sugar that makes as…
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Understanding the DOM (Document Object Model)
When you load an HTML page, the browser parses the text and creates a tree-like structure called the Document Object Model, or DOM. This is the interface b…