Billy Ewing

Are Your Parentheses Balanced?

Validating parentheses is a common question that tech interviewers like to ask, primarily because it tests your understanding of data structures and algorithms. The challenge usually revolves around determining if a string consisting of parentheses is valid, meaning every opening parenthesis has a corresponding closing parenthesis, and they are correctly nested. This problem can be tackled efficiently using a stack data structure.

Are Chatbots Considered AI Applications?

Chatbots have become a common feature in our digital interactions. They assist with customer service, provide information, and even engage users in casual conversation. But the question arises: are chatbots truly applications of artificial intelligence?

How to Reverse Nodes in K-Group in a Linked List?

Reversing nodes in groups of k in a linked list can be a common coding interview question, often asked to assess your understanding of linked lists and your ability to manipulate pointers effectively. This problem can appear complex at first, but through a structured approach, it can be tackled systematically.

Is ChatGPT an AI Chat?

In a world increasingly filled with technology, questions about artificial intelligence and its capabilities continue to grow. One such curiosity is whether ChatGPT qualifies as an AI chat service. This article will explore what ChatGPT is and how it functions as a chatbot powered by artificial intelligence.

Managing Scheduled Tasks with Node.js Cron Jobs

Scheduling tasks is a critical feature in many applications, especially for backend processes that require automatic execution. In the Node.js environment, cron jobs are a popular way to handle these repetitive tasks. This article will explore how to implement cron jobs using Node.js and provide practical examples.

Struggling to Get Node.js? Here’s What You Need to Know

Are you finding it difficult to install Node.js on your machine? You’re not alone. Many developers face challenges when trying to get this popular JavaScript runtime up and running, but don't worry! This article aims to guide you through the process, debunk common issues, and offer helpful tips for a smooth installation experience.

The Future of Artificial General Intelligence: Capabilities and Impact

Artificial General Intelligence (AGI) represents a major milestone in the field of artificial intelligence. Unlike narrow AI, which excels in specific tasks, AGI is designed to understand, learn, and apply knowledge across a wide range of domains just like a human. As the development of AGI progresses, questions arise about what superintelligent systems will be able to accomplish and how that capability will influence human society.

Binary Tree Nodes - HackerRank Solution Explained

Binary trees are a fundamental data structure in computer science, essential for various algorithms and problem-solving techniques. A popular challenge on HackerRank is to write code that efficiently counts the nodes in a binary tree. This problem not only tests your understanding of binary trees but also your ability to implement recursion or iterative methods effectively. This article will guide you through the problem and offer a clear solution approach.

The Power of Node.js

Node.js has taken the world of web development by storm, becoming a favorite among developers for building scalable and efficient applications. This JavaScript runtime allows developers to use JavaScript on the server side, making it easier to create fast and reliable network applications.

Vue.js and Node.js: Building Modern Web Apps

Vue.js and Node.js make a strong team for creating web applications. Let me share my experience and knowledge about these two popular technologies that work great together.

Building Message Systems with Node.js and RabbitMQ

Message queues make complex systems work better. RabbitMQ stands as one of the most used message brokers, and when combined with Node.js, it creates reliable message-driven applications. Let's explore how these technologies work together and build better systems.

Junior Enlisted Pay Raise 2025: A Significant Boost for U.S. Military Personnel

In a move that is set to significantly impact the lives of junior enlisted members of the U.S. military, the Senate has finalized plans for a substantial pay increase effective in 2025. This development comes as a welcome relief for many servicemembers who have been facing various financial challenges.

What is a System Prompt When Using APIs like GPT or Claude?

When working with advanced language models like GPT or Claude, the concept of a system prompt is crucial for guiding the interaction and ensuring the desired outcomes. Here’s a detailed look at what a system prompt is and how it is used.

Getting Started with Node.js and Elasticsearch

Node.js and Elasticsearch make a powerful combination for building data-intensive applications. As web applications grow and require more advanced search functionalities, developers turn to Elasticsearch for its robust search capabilities. Integrating Elasticsearch with Node.js simplifies querying complex datasets while taking advantage of the JavaScript runtime environment.

AWS S3 with npm: A Developer's Best Friend

I often find myself in projects where I need to store and retrieve files. Whether it's user-uploaded profile pictures, application backups, or just some configuration data, the need for reliable storage always comes up. This is where AWS S3 enters the picture, and using it with npm makes a developer's life so much easier.

How to Contact Facebook Customer Service

Getting help from Facebook can be tricky, especially when you need to talk to a real person. While Facebook doesn't make it easy to find their phone support, there are several ways to reach their customer service team. Let me show you the steps and tips to contact Facebook's support team through phone and other methods.

Merry Christmas Messages

The holiday season is upon us and the air is filled with that special, sparkly feeling. It’s a time for family, friends, and all those warm fuzzy sentiments. Finding the perfect words to share with loved ones can sometimes be, well, a little tricky. I thought I’d share some ideas with you – a compilation of messages to spread the Christmas cheer. I curated a list of 20 messages that hopefully will give you a little hand in showing your love and wishes to the special people in your life.

How to Enable JavaScript on Mac

JavaScript plays an important role in how websites behave. If you find certain features or functions on a site aren’t working, it might be because JavaScript is turned off. Fortunately, enabling it on a Mac is straightforward. This guide will take you through the process for different browsers.