HappyNewsMan (TechLead Pratap)

 In Angular, pipes are used to transform data in templates. There are two types of pipes in Angular: pure pipes and impure pipes . These pipes are used to modify or format data before it is displayed to the user, but they differ in how they behave when the input data changes. Pure Pipes A pure pipe is a pipe that only executes when the input to the pipe changes. Angular executes pure pipes only when the input data or parameters passed to the pipe change . Pure pipes are more efficient because they don't execute unnecessarily when data hasn't changed. Pure Pipe Characteristics : It runs only when the input data changes (i.e., when the reference of the input changes). It is more efficient because Angular checks it less often. By default, Angular pipes are pure unless explicitly marked as impure. Impure Pipes An impure pipe runs every time change detection is triggered, regardless of whether the input data changes or not. This means impure pipes are executed on every componen...

 In JavaScript, the event loop handles asynchronous code execution. Two important types of tasks handled by the event loop are microtasks and macrotasks . Understanding the difference between these two is crucial for understanding how JavaScript handles concurrency, especially when dealing with setTimeout , Promise , and other asynchronous APIs. Microtask vs Macrotask Microtasks : Microtasks are tasks that are executed after the current script has finished execution but before any other macrotask is executed. These tasks are executed at the end of the current event loop iteration, after the synchronous code has completed but before the event loop continues with macrotasks. Promises and queueMicrotask() are examples of microtasks. Microtasks are executed immediately after the current task (script execution) finishes, before any rendering or macrotask execution. Macrotasks : Macrotasks (also called "tasks") are tasks that are scheduled to be executed in the next iteration...

  Benefits of Promises in JavaScript Improved Asynchronous Code Management Promises help to manage asynchronous operations in JavaScript in a more structured way. They allow you to handle operations like network requests, file reading, or timers without relying on complex callback functions, leading to cleaner and more readable code. Example: javascript Copy code const fetchData = new Promise ( ( resolve, reject ) => { setTimeout ( () => { resolve ( 'Data fetched successfully' ); }, 2000 ); }); fetchData. then ( response => console . log (response)); Avoiding Callback Hell Promises help to avoid the issue of callback hell (also known as "pyramid of doom"), where nested callbacks create hard-to-read code. Promises allow you to chain asynchronous operations with .then() and .catch() , resulting in a more linear and readable structure. Example: javascript Copy code fetchData . then ( response => { return processData (response); // C...

  Benefits of Vue.js Framework Simple and Easy to Learn Vue.js has a gentle learning curve compared to other JavaScript frameworks like Angular and React. Its syntax is simple, and it uses HTML, CSS, and JavaScript in a very familiar way. Developers can quickly grasp Vue’s concepts, especially if they already know HTML, CSS, and JavaScript. Example: html Copy code < div id = "app" > < p > {{ message }} </ p > </ div > < script > new Vue ({ el : '#app' , data : { message : 'Hello, Vue!' } }); </ script > Flexible and Incremental Adoption Vue.js is designed to be flexible, allowing you to incrementally adopt its features. You can start by using Vue to enhance a small part of a website, like a single component, without needing to refactor the entire app. Vue can easily integrate into existing projects, making it a good choice for improving legacy applications. Two-Way Data Binding Vue.js sup...

  Benefits of Next.js Framework Server-Side Rendering (SSR) Next.js allows server-side rendering (SSR) by default, which means the HTML of a page is generated on the server and sent to the client. This improves SEO (Search Engine Optimization) and initial load performance , as the content is immediately available to search engines and users without waiting for JavaScript to load and render the page. SSR is especially useful for content-heavy websites where SEO and faster page loads are important. Example: javascript Copy code export async function getServerSideProps ( ) { const res = await fetch ( 'https://api.example.com/data' ); const data = await res. json (); return { props : { data } }; } Static Site Generation (SSG) Next.js also supports static site generation (SSG) , allowing you to pre-render pages at build time. This results in fast-loading static pages that can be served from a CDN, which is great for performance and scalability. You can generate page...