Creating and publishing an npm module is a great way to share your code with the community. Here’s a step-by-step guide to help you through the process. Step 1: Set Up Your Project First, create a new directory for your module and navigate into it:
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mkdir my-npm-module-example cd my-npm-module-example |
Next, initialize your project with npm:
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npm init |
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In Java, working with strings efficiently can significantly impact performance. Java provides three key classes for string manipulation: String, StringBuffer, and StringBuilder. Each has unique properties, making them suitable for different use cases. Let’s explore the differences between them and when to use each. String String in Java is immutable, meaning once a string…
Unit testing is crucial in Node.js applications to ensure the functionality of your routes and middleware. In an Express application, testing helps identify potential issues before deployment. In this guide, we will walk through setting up and writing unit tests for a Node.js application with Express using Mocha and Chai. Setup: First, ensure you…
Unit testing is an integral part of React development, helping you catch bugs early and ensure your components behave as expected. React’s ecosystem provides excellent tools for testing, such as Jest and React Testing Library. In this guide, we’ll walk through setting up and writing your first unit test in React. Setup: First, ensure that…
Unit testing is an essential part of Angular development, ensuring that individual components or services function as expected. With Angular, the built-in testing tools make it simple to set up tests using Jasmine and Karma. Setup: To begin, ensure you have an Angular project set up. You can generate one with:
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ng new angular-unit-testing |
After generating…
Docker simplifies the process to deploy a Node.js Express app by packaging it into a container. In this guide, we’ll show how to deploy deploy a Node.js Express app step-by-step using Docker. Prerequisites: Nodejs Docker Step 1: Create the Node.js Express App First, initialize a basic Express app. If you haven’t already, install Node.js…
Log file rotation in Node.js is essential for managing log size and ensuring efficient monitoring of your application. In this guide, we will implement log file rotation in a Node.js application using Express and the winston and winston-daily-rotate-file packages. Step 1: Set Up Express for Logging First, create a basic Express app: Initialize the…
Logging is essential for tracking application behaviour, debugging, and monitoring. Winston logger, a versatile logging library, simplifies logging in Node.js applications. It offers features like multiple transports, log levels, and customizable formats. Step 1: Set Up Express First, create a basic Express app: Initialize the project:
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mkdir winston-logger-demo cd winston-logger-demo npm init -y |
Install Express:
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npm install express |
Create an index.js file:…
Choosing the right database management system is crucial for any project. PostgreSQL and MySQL are two of the most popular open-source databases, each with distinct advantages and disadvantages. Understanding their differences will help you make an informed decision. PostgreSQL: Advantages and Disadvantages Advantages: Feature-Rich: PostgreSQL offers advanced features like complex queries, full-text search, JSON…
React Fiber is a complete overhaul of React’s reconciliation engine, making the UI updates more efficient. It breaks down rendering work into smaller units, allowing React to manage rendering tasks more effectively, even when interruptions occur. In this blog, we’ll dive into how it operates and explore a code example that demonstrates its power. What…