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The Longest Remaining Time First (LRTF) scheduling algorithm is a variant of the Longest Job First (LJF) algorithm and is used by the operating system to schedule incoming processes. In LRTF, the process with the highest remaining execution time is given the highest priority and scheduled to be executed first. Algorithm Create a structure of process containing all necessary fields like AT (Arrival Time), BT(Burst Time), CT(Completion Time), TAT(Turn Around Time), and WT(Waiting Time). Sort the processes according to their Arrival Time (AT). Find the process with the largest Burst Time (BT) and execute it for one unit of ... Read More
In the world of web development, delivering a fast and seamless user experience is crucial. One way to achieve this is through Server-Side Rendering (SSR), a technique that allows rendering web pages on the server before sending them to the client. SSR offers numerous benefits, including improved performance, SEO optimization, and better user interaction. In this article, we will explore the fundamentals of SSR using Next.js, a popular JavaScript framework for building server-rendered React applications. What is Server-Side Rendering (SSR)? Traditionally, web applications have relied on client-side rendering, where the entire rendering process occurs on the browser using JavaScript. This ... Read More
Acquiring values of system properties and environment variables plays a pivotal role in accessing critical configuration information within applications written using Java. System properties encompass various elements of a system, such as its Java installation directory or version number or user preferences. Environment variables, on the other hand, are dynamic values set either by an operating system or user that impact application performance. By accessing these properties and variables, you gain invaluable insights into the system configuration that enable you to adapt your code accordingly for greater compatibility, customization and seamless integration into its surrounding environment. Environment ... Read More
In recent years, the world of robotics has seen a significant shift towards open-source technologies and platforms. One such platform that has gained immense popularity is Raspberry Pi, a small and affordable single-board computer. Coupled with the power and versatility of JavaScript, developers can now embark on exciting journeys into the world of robotics. In this article, we will explore how to build autonomous robots using Raspberry Pi and JavaScript, diving into code examples, explanations, and their output. Setting Up Raspberry Pi Before we delve into the realm of JavaScript robotics, it is essential to set up our Raspberry Pi ... Read More
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