Hoisting is a term used in JavaScript to describe the behavior of variable and function declarations being moved to the top of their respective scopes during the execution of the code. This can sometimes lead to unexpected behavior and bugs in your code if you’re not familiar with how it works. In this article, we’ll … Read More “Understanding Hoisting in JavaScript” »
In JavaScript, scope determines the visibility and accessibility of variables and functions. The scope chain is a mechanism for resolving variable and function references in the context of the code execution. In this article, we will explore the scope chain and how to use it for inheritance in JavaScript. What is Scope Chain? The scope … Read More “Understanding Scope Chain in JavaScript” »
In JavaScript, an execution context is the environment in which a piece of code is executed. It consists of three main components: the Variable Environment, the Lexical Environment, and the This Binding. Understanding how these components work together is key to understanding how JavaScript code is executed. Variable Environment The Variable Environment is where the … Read More “Javascript | execution context & Lexical Environment” »
there are several ways to remove an element from an object. Here are some of the most common methods: The delete keyword can be used to remove a property from an object. Here’s an example: const obj = { a: 1, b: 2, c: 3 }; delete obj.b; console.log(obj); // { a: 1, c: 3 … Read More “Method of removing an element from object” »
There are several ways to remove an element from an array using JavaScript: The splice() method changes the contents of an array by removing or replacing existing elements and/or adding new elements. const fruitList = [“apple”, “banana”, “orange”, “kiwi”]; // remove one element starting from index 1 fruitList.splice(1, 1); console.log(fruitList); // logs [“apple”, “orange”, “kiwi”] … Read More “Method to remove an item from an array” »
JavaScript is a popular programming language used for creating dynamic and interactive web applications. One of its key features is its single-threaded model. In this blog post, we will explore what this means, how it works, and its advantages and disadvantages. What is the Single-Threaded Model in JavaScript? A thread is a sequence of instructions … Read More “Understanding JavaScript’s Single-Threaded Model: Benefits and Limitations” »
Node.js is a popular platform for building scalable, high-performance applications. At the core of Node.js lies the event loop mechanism, which allows Node.js to handle large numbers of I/O operations in a non-blocking, asynchronous way. Understanding how the event loop works is essential for building efficient Node.js applications. The event loop mechanism in Node.js is … Read More “Node.js and Event Loop Mechanism: Understanding the Phases” »
you may have heard of the term “garbage collection.” It is an essential concept in modern programming languages like JavaScript. It is an automated process that frees up memory occupied by objects that are no longer in use. This article will provide you with an in-depth understanding of garbage collection in JavaScript. What is Garbage … Read More “Garbage Collection in JavaScript: Understanding How It Works” »
Understanding how the language handles memory is crucial to writing efficient and optimized code. When your code runs, JavaScript creates two main components in memory: the Call Stack and the Memory Heap. The Call Stack: The Call Stack is responsible for managing the execution of functions in your code. It is a Last In, First … Read More “Call Stack + Memory Heap: Understanding the Fundamentals of JavaScript Memory Management” »
JavaScript is a popular language known for its versatility and flexibility. However, while some features can help you write code quickly, others may have a negative impact on performance. In this article, we’ll discuss six features you should avoid using in your JavaScript code to keep it optimized. The eval() function is used to evaluate … Read More “Avoid These JavaScript Features for Optimized Code” »