Jun 28, 2025 · 2 min read · Simple, but the most asked interview question in JavaScript, and its answer will drive your whole interview. Easy, but most students miss this one, Let me clear all your doubts about var, let, and const. I have given you some points that you can me...
Join discussionJun 28, 2025 · 1 min read · What is the difference between undefined and not defined? Simple, but sometimes candidates are not able to explain this either. Let me explain it with a simple example, let's assume in your college there is an attendance register case 1: A st...
Join discussionApr 16, 2025 · 3 min read · What Makes JS Run? — The JavaScript Runtime Environment (JRE) JS needs a special environment to run — this is called the JavaScript Runtime Environment (JRE). Think of JRE as a Kitchen: JS Engine: The chef who cooks your code. Web APIs: Extra tools...
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Dec 30, 2024 · 4 min read · Interviews for ReactJS and JavaScript roles can be challenging, especially for developers aiming to showcase their expertise in front-end development. Preparing effectively is key to acing these interviews and landing your dream job. In this post, we...
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Oct 3, 2024 · 1 min read · These are the 13 important topics to learn before revising the backend in MERN Core JavaScript Concepts Functions Asynchronous Programming Object-Oriented Programming (OOP) Event Loop and Concurrency Model Working with APIs Modules File Syste...
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Aug 14, 2024 · 2 min read · What is Node Js? Node.js is a tool that allows us to run JavaScript everywhere. Before Node.js, JavaScript could only be executed in the browser. It is a cross-platform JavaScript runtime built on top of Chrome's V8 JavaScript engine. Wherever there...
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Aug 13, 2024 · 3 min read · Introduction: Hey everyone! Today, I had the chance to learn about something super important in JavaScript—promises. If you've been working with asynchronous code and have found yourself tangled in a mess of callbacks, promises are going to be your n...
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Apr 3, 2024 · 1 min read · https://youtu.be/ZvbzSrg0afE?si=klkUWun6WccZpIUz every programming language has a unique way of executing the code, Here in javascript everything starts with the Execution context. Execution context The execution context can be split into two parts...
Join discussionApr 3, 2024 · 2 min read · In the previous blog, we learnt about Execution context, let's see how's the creation of execution context happens Creation of javascript execution context creation of execution context can be separated into two phases: memory allocation phase here...
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