Showing 21 - 30 of 240 historical articles
Summary of ES2021 feature
ES2021 Features: A Comprehensive Summary of New JavaScript Additions ES2021 features, also known as ECMAScript 2021, have introduced a variety of powerful new tools and syntax improvements to the JavaScript ecosystem. If you are a developer looking to stay up...
Best Practices for Writing Unit Tests in Node.js
Node.js Unit Testing Best Practices & Frameworks Executive Summary: Unit testing in Node.js is essential for building reliable, maintainable software. By isolating functions, covering edge cases, and leveraging powerful testing frameworks like Jest, Mocha, AV...
How do you debug performance issues in a Node.js application?
Is College Still Worth It? Bill Maher's Perspective on Student Debt By Bill Maher Summary: In the modern economy, the traditional path of a college education is being heavily questioned. Graduates face crippling student loan debt, often between $60,000 and $1...
ACID properties in relational databases and How they ensure data consistency
What are ACID properties? ACID properties (Atomicity, Consistency, Isolation, and Durability) are fundamental principles in relational database management systems (RDBMS) that guarantee reliable processing of database transactions and ensure absolute data con...
Database Query Optimization Strategies
To optimize database queries and improve performance, I recommend a structured approach that addresses both the queries themselves and the broader database environment. Whether you are running a high-traffic web application, an e-commerce platform, or an inte...
How would you decide between using MongoDB (NoSQL) and PostgreSQL (relational database) for a new application?
MongoDB vs PostgreSQL: Choosing the Best Database for Your Application Summary: The choice between MongoDB and PostgreSQL comes down to the schema flexibility of document databases versus the strict ACID compliance of relational databases. By evaluating your...
Managing Service Discovery and Failure Recovery in a Microservices-Based Node.js Application
Node.js Microservices: Discovery, Recovery, and gRPC Versioning Featured Snippet: Managing service discovery and failure recovery in Node.js microservices requires a combination of a centralized registry (like Consul or etcd) for dynamic routing, and resilien...
Handling Load Balancing in a Horizontally Scaled Node.js App
Handling Load Balancing in a Horizontally Scaled Node.js App Summary: Load balancing in a horizontally scaled Node.js application involves distributing incoming traffic across multiple servers. This ensures no single server is overwhelmed, providing scalabili...
What happens if func is an arrow function? Will this behave as expected?
What happens if func is an arrow function? Will this behave as expected? Summary: In JavaScript, arrow functions behave differently from regular functions regarding the this keyword. Arrow functions inherit this from the surrounding lexical context instead of...
What are closures in JavaScript?
What Are Closures in JavaScript? Introduction to Lexical Scope and Closures Featured Snippet Summary: A closure in JavaScript is a function that retains access to its lexical scope, even after the outer function in which it was defined has finished executing....