Found 6704 Articles for Javascript

Efficient memory management is crucial for optimising the performance and stability of JavaScript applications. Memory leaks and excessive memory usage can lead to degraded performance, crashes, and poor user experiences. To address these issues, JavaScript provides several advanced techniques for memory profiling and heap analysis. In this article, we will explore these techniques, accompanied by code examples and outputs, to gain a comprehensive understanding of how to optimise memory usage in JavaScript applications. Understanding Memory in JavaScript JavaScript uses automatic memory management, where a garbage collector frees up memory by identifying and deallocating objects that are no longer needed. However, ... Read More

Testing plays a crucial role in ensuring the quality and reliability of JavaScript applications. While unit testing is widely adopted, advanced testing techniques such as integration testing, end-to-end (E2E) testing, and mocking are equally important in delivering robust applications. In this article, we will explore these advanced JavaScript testing techniques, providing theoretical explanations, code examples, and their benefits. Integration Testing Integration testing focuses on verifying the interactions and dependencies between different components of an application. It ensures that individual units work together harmoniously. JavaScript frameworks like Jest, Mocha, and Jasmine provide excellent support for integration testing. Example Scenario Let's consider ... Read More

JavaScript is a powerful language that can be used for a wide variety of applications, including robotics. Johnny-Five is a JavaScript framework that makes it easy to control hardware devices with JavaScript. With Johnny-Five, you can use JavaScript to control Arduino boards, Raspberry Pis, and other hardware devices. The world of robotics and hardware control has become increasingly accessible to developers in recent years. One of the most popular platforms for experimenting with robotics is Arduino, an open-source electronics platform based on easy-to-use hardware and software. Coupled with JavaScript, one of the most widely used programming languages, we have a ... Read More

In recent years, JavaScript has gained tremendous popularity as a programming language for developing robotic applications. Its versatility, ease of use, and extensive ecosystem make it an excellent choice for building interactive and intelligent robots. One of the most exciting aspects of robotics is computer vision, which enables robots to perceive and interpret their environment. In this article, we will explore how JavaScript can be used to implement computer vision and object recognition tasks. We will delve into the theory behind computer vision, discuss relevant JavaScript libraries and frameworks, and provide practical examples with detailed code snippets and their corresponding ... Read More

In recent years, the field of robotics has seen tremendous growth and innovation. With the advent of JavaScript, a versatile and widely used programming language, developers now have the power to build autonomous robots and drones using familiar tools and frameworks. In this article, we will explore the exciting world of JavaScript robotics by focusing on building autonomous drones. JavaScript Robotics and Drones Traditionally, building robots and drones required knowledge of specialized languages such as C++ or Python. However, JavaScript has emerged as a viable alternative due to its ease of use, wide adoption, and a vibrant ecosystem of libraries ... Read More

JavaScript is a popular programming language used for creating dynamic web pages and applications. However, as applications become more complex, memory usage and performance can become critical factors. In this article, we will explore memory profiling and performance optimization techniques in JavaScript to help you build efficient and fast-running applications. Memory Profiling Memory profiling involves analysing the memory usage of your JavaScript application to identify and resolve memory leaks and excessive memory consumption. Let's look at a few more examples of memory profiling using different tools and techniques.Example Memory Profiling with Chrome DevTools function createArray(size) { var ... Read More

JavaScript is a powerful and widely-used programming language that runs on the client-side of web applications. As a developer, it is essential to understand memory management in JavaScript to optimize your code for better performance. In this article, we will delve into the intricacies of memory management in JavaScript, focusing on memory leaks and performance optimization techniques. We will also provide a working code example to demonstrate these concepts in action. Understanding Memory Management in JavaScript JavaScript utilizes an automatic memory management system known as garbage collection. The garbage collector is responsible for allocating and deallocating memory as needed, making ... Read More

Machine Learning (ML) has revolutionized various industries, enabling computers to learn and make predictions based on patterns and data. Traditionally, ML models were built and executed on servers or high-performance machines. However, with the advancements in web technologies, it is now possible to build and deploy ML models directly in the browser using JavaScript. In this article, we will explore the exciting world of JavaScript Machine Learning and learn how to build ML models that can run in the browser. Understanding Machine Learning Machine Learning is a subset of Artificial Intelligence (AI) that focuses on creating models capable of ... Read More

In today's digital era, location-aware applications have become increasingly popular. Whether it's a map-based service, a weather app, or a food delivery platform, having access to a user's location can greatly enhance the user experience. JavaScript provides a powerful Geolocation API that allows developers to integrate location-based functionality seamlessly into web applications. In this article, we will explore the JavaScript Geolocation API and learn how to build location-aware applications. Getting Started To begin with, let's understand the basic concepts of the Geolocation API. The API provides a way to retrieve the geographical position of a user's device. It uses various ... Read More

JavaScript is a versatile programming language that can be used for various applications, including game development. In this article, we will dive into the exciting world of JavaScript game development and explore the process of building a 2D game engine. We will provide code examples with explanations and showcase their output to help you understand the concepts better. So, let's get started! Understanding the Basics Before we begin building our game engine, let's familiarize ourselves with some fundamental concepts of game development. In a 2D game, we typically deal with objects, sprites, game loops, and collision detection. Objects − Objects represent ... Read More