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Dependency Injection (DI) is a design pattern that allows a piece of code to receive other functionality it depends on. In Node.js, this pattern can significantly enhance modularity, facilitate more manageable testing, and improve code management. This blog post will explore how DI works in Node.js and how it can be implemented effectively.
Posted 6 months ago
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Understanding the ACID properties is essential for developers working with relational databases like PostgreSQL. ACID stands for Atomicity, Consistency, Isolation, and Durability. These properties ensure that database transactions are processed reliably and help in maintaining the integrity of data across concurrent transactions.
Posted 6 months ago
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The SOLID principles are a set of guidelines that developers can follow to make their code more understandable, flexible, and maintainable. Originally formulated by Robert C. Martin, these principles apply to object-oriented design, but they can also be very useful in structuring JavaScript projects, especially those using classes (ES6 and beyond).
Posted 6 months ago
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In the JavaScript file, write a program to perform a GET request on the route https://coderbyte.com/api/ challenges/json/age-counting which contains a data key and the value is a string which contains items in the format: key STRING, age INTEGER. Your goal is to count how many items exist that have an age equal to 32. Then you should create a write stream to a file called output.txt and the contents should be the key values (from the json) each on a separate line in the order they appeared in the json file (the file should end with a newline character on its own line). Finally, then output the SHA1 hash of the file.
Posted 6 months ago
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URL shorteners are a popular tool across the web, turning long URLs into manageable, short links that are easier to share. In this tutorial, we'll build a simple URL shortener from scratch using Node.js and JavaScript, including the backend service and a basic front-end.
Posted 6 months ago
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In today's rapidly evolving software landscape, scalability and flexibility are key. Many organizations are moving away from traditional monolithic architectures to embrace microservices, particularly for complex applications that need to scale dynamically. In this blog post, we'll explore how to transition from a monolithic application to a microservices architecture using Node.js, highlighting practical steps and considerations.
Posted 6 months ago