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…
When it comes to client-side storage in web applications, three primary methods come into play: LocalStorage, SessionStorage, and Cookies. While each serves the purpose of storing data, they differ significantly in how and when they should be used. LocalStorage is designed to store data persistently, which means that even after the browser is closed,…
Integrating Plotly with React and TypeScript allows developers to create dynamic, interactive charts with ease. This guide will walk you through the steps to implement Plotly in a React TypeScript project with a simple example. Let’s get started. First and foremost, create a new React project with TypeScript. Open your terminal and run:
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npx create-react-app plotly-react-ts --template typescript cd plotly-react-ts |
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Integrating Plotly with Angular enables developers to create interactive, high-quality charts and graphs. This guide will walk you through the steps to implement Plotly in an Angular application with a simple example. Let’s dive right in. First and foremost, you need to set up your Angular project. If you haven’t already, create a new Angular…