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JavaScript | Latest Tutorials

Advantages of Promises Over Callbacks in JavaScript

Promises are considered better than callbacks for managing asynchronous code in JavaScript for several reasons:

The Ultimate Guide to JWT Refresh Tokens and Redis for Node.js Authentication

Securing Node.js applications with JSON Web Tokens (JWT), refresh tokens, and Redis is a common and effective approach to enhance the security of your authentication and authorization mechanisms. This combination provides secure authentication, token expiration management, and the ability to handle…

How to Send and Display Flash Messages in Nodejs

Flash messages, also known as flash notifications or flash alerts, are a common way to provide temporary feedback to users on a website or web application. In Node.js, you can implement flash messages using middleware and session management. Here's a step-by-step guide to sending flash messages using…

How to Use Thread Pools to Improve Node.js Performance

Node.js is known for its single-threaded, event-driven architecture, but there are situations where you might want to take advantage of multiple CPU cores to maximize performance. One way to achieve this is by using Node.js' built-in thread pool to offload CPU-intensive tasks to worker threads. Here…

Advanced Error Handling Techniques in Nodejs

Error handling is a crucial aspect of writing robust and reliable Node.js applications. Proper error handling ensures that your application gracefully handles unexpected issues and prevents crashes. Here are some error handling techniques and best practices in Node.js:

Difference Between Promise and Async Await

Promises and async/await are both asynchronous programming constructs in JavaScript that help manage asynchronous operations and make code more readable and maintainable. They are closely related, as async/await is built on top of Promises. Here's an explanation of the key differences between them:

How to Implement Facebook and Google and Email Authentication in NodeJs

Implementing authentication with Facebook, Google, and email/password in a Node.js application typically involves using third-party libraries or services for social logins and implementing your custom authentication system for email/password. Below, I'll provide a high-level overview of how you can…

Creating a Basic Server Side Cache for ExpressJs with NodeJs

Creating a simple server-side cache for Express.js with Node.js can improve the performance of your web application by reducing the need to fetch data from external sources or perform expensive computations repeatedly. One of the easiest ways to implement server-side caching is by using an in-memory…

How to Set Up and Use ESLint in Node.js Applications

ESLint is a popular static code analysis tool for JavaScript and can be used to enforce coding style and find potential issues in Node.js applications. Here's how you can set up and use ESLint in a Node.js application:

Advanced Strategies for Detecting and Resolving Memory Leaks in Node.js Applications

Detecting memory leaks in Node.js applications can be a challenging task, especially in complex applications with asynchronous code and multiple dependencies. Memory leaks occur when a program unintentionally retains references to objects in memory, preventing them from being garbage collected. Over…

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