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📰 Dev.to · Souvik Guha Roy

16 articles · Updated every 3 hours · View all reads

All Articles 117,238 Blog Posts 125,145 Tech Tutorials 29,973 Research Papers 23,710 News 17,259 ⚡ AI Lessons

Understanding the this Keyword in JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

Understanding the this Keyword in JavaScript

JavaScript has a special keyword called this that often confuses beginners. The key idea: this...

Map and Set in JavaScript

Dev.to · Souvik Guha Roy 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

Map and Set in JavaScript

JavaScript offers Map and Set as modern data structures to solve common problems with traditional...

Destructuring in JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

Destructuring in JavaScript

Have you ever written code like this? ```js id="before1" const user = { name: "Rahul", age: 22...

JavaScript Promises Explained for Beginners

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

JavaScript Promises Explained for Beginners

JavaScript is single-threaded, meaning it can only do one thing at a time. But what if you need to...

Synchronous vs Asynchronous JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

Synchronous vs Asynchronous JavaScript

JavaScript is single-threaded—but it can still handle multiple tasks efficiently. How? The answer...

Async/Await in JavaScript: Writing Cleaner Asynchronous Code

Dev.to · Souvik Guha Roy 3mo ago

Async/Await in JavaScript: Writing Cleaner Asynchronous Code

Handling asynchronous code in JavaScript used to be messy—first with callbacks, then with...

Error Handling in JavaScript: Try, Catch, Finally

Dev.to · Souvik Guha Roy 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

Error Handling in JavaScript: Try, Catch, Finally

No matter how good your code is, errors are inevitable. What matters is how you handle...

Spread vs Rest Operators in JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

Spread vs Rest Operators in JavaScript

If you’ve ever seen ... in JavaScript and wondered what it does—you’re not alone. The same syntax is...

String Polyfills and Common Interview Methods in JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

String Polyfills and Common Interview Methods in JavaScript

Strings are everywhere in JavaScript—from user input to APIs. While JavaScript provides many built-in...

The new Keyword in JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

The new Keyword in JavaScript

If you’ve ever seen code like this: const user = new User("Rahul"); Enter fullscreen mode ...

Callbacks in JavaScript: Why They Exist

Dev.to · Souvik Guha Roy 3mo ago

Callbacks in JavaScript: Why They Exist

JavaScript is powerful—but also a bit tricky when it comes to handling tasks that don’t happen...

Template Literals in JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

Template Literals in JavaScript

Handling strings is something every JavaScript developer does daily. But traditional string...

Array Flatten in JavaScript

Dev.to · Souvik Guha Roy ⚡ AI Lesson 3mo ago

Array Flatten in JavaScript

Working with arrays is common in JavaScript—but sometimes arrays can get nested, making them harder...

JavaScript Modules: Import and Export Explained

Dev.to · Souvik Guha Roy 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

JavaScript Modules: Import and Export Explained

Modern JavaScript development has evolved far beyond writing everything in a single file. As...

The Magic of `this`, `call()`, `apply()`, and `bind()` in JavaScript

Dev.to · Souvik Guha Roy 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

The Magic of `this`, `call()`, `apply()`, and `bind()` in JavaScript

One of the most confusing concepts for beginners in JavaScript is the keyword this. Sometimes this...

JavaScript Arrays 101

Dev.to · Souvik Guha Roy 🌐 Frontend Engineering 3mo ago

JavaScript Arrays 101

When working with JavaScript, you will often need to store multiple values together. For example, you...