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Reactive programming is a programming paradigm that deals with asynchronous data streams. It is a way of writing code that is more responsive to change, and that can handle events and data streams in a more efficient way. In reactive programming, data is represented as a stream of events. These events can be anything from user input to network requests to database updates. The program then subscribes to these events, and reacts to them as they happen. This approach to programming has a number of advantages. First, it makes it easier to deal with asynchronous data. In traditional programming, asynchronous ... Read More
JavaScript is a versatile programming language that runs on the client-side as well as the server-side. Traditionally, JavaScript executed tasks in a single-threaded manner, which limited its ability to handle computationally intensive operations efficiently. However, with advancements in web technologies, parallel programming in JavaScript has become possible through the use of Web Workers and SIMD.js. This article aims to introduce parallel programming concepts in JavaScript, focusing on Web Workers and SIMD.js, along with code examples to illustrate their usage. Understanding Parallel Programming Parallel programming involves dividing a task into smaller subtasks that can be executed concurrently, thereby utilising multiple resources ... Read More
JavaScript is a widely used programming language for building web applications. As web applications grow in complexity, it becomes essential to optimize JavaScript code for better performance. Two key areas that significantly impact JavaScript performance are memory management and code profiling. In this article, we will explore advanced techniques in memory management and code profiling, accompanied by detailed code examples, outputs, and explanations, to help you optimise your JavaScript applications. Memory Management Efficient memory management is crucial for JavaScript performance. Poor memory management can lead to memory leaks and excessive memory usage, resulting in slower application performance. Here are some ... Read More
In today's digital landscape, web applications have become increasingly sophisticated, offering a wide range of features and functionalities to users. However, this evolution comes at a cost: larger JavaScript bundle sizes. When a user visits a website, the browser is responsible for downloading and executing the entire JavaScript bundle, which can be a time-consuming process. This results in slower load times, increased network usage, and, ultimately, a negative impact on the user experience. To address this challenge, developers have turned to various techniques to optimize JavaScript bundle sizes. Two popular strategies that have gained traction are code splitting and lazy ... Read More
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
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 Java, concurrent programming often involves managing multiple threads and distinguishing them from one another. One crucial aspect of thread management is obtaining the unique identifier of the currently running thread. Knowing how to get the ID of a current running thread is essential for tasks like tracking thread behavior, synchronization, and debugging. This tutorial explores various Java methods to do just this. Thread Java's threads are lightweight units of execution within programs, providing parallel execution of tasks and providing one sequential flow of control within them allowing programs to carry out multiple operations concurrently. Each thread runs independently ... 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