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Scala, a versatile programming language, offers concurrency and parallelism capabilities through its Future and Await constructs. While Await can simplify concurrent programming, it can also lead to performance bottlenecks and other issues. In this guide, we’ll explore Await and Future in Scala, and why it’s often best to avoid using Await. Future Future is a…
Introduction: Microsoft Excel’s VLOOKUP function is a powerful tool to connect and extract data from multiple tables, making data analysis and management a breeze. In this in-depth guide, we’ll dive into VLOOKUP with a real-world example involving two tables – one with employee information and the other with salary details. Example: Employee Data Management Imagine…
In Bash, the ‘pipefail’ option is a powerful tool for controlling pipeline behavior. It helps ensure that pipelines provide accurate error handling and exit statuses. In this guide, we’ll explore ‘pipefail,’ its importance, and practical examples of its usage. What is ‘pipefail’? In Bash, pipelines usually return the exit status of the last command in…
The ‘set’ command is used to modify shell options and positional parameters. These options influence the behavior of the shell, affecting how it interprets and executes commands. When you use the ‘set’ command, it can change various aspects of your shell environment. This includes toggling options, managing positional parameters, and customizing the shell’s behavior. Basic…
Cron is a time-based job scheduler in Unix-like operating systems, including macOS. It allows you to automate tasks by running scripts or commands at specified intervals. This blog will guide you through configuring and managing cron jobs on macOS. What Are Cron Jobs? Cron jobs are scheduled tasks that run automatically at predefined times or…
When you’re using a macOS-based system, knowing how to find the size of files is essential for managing your storage efficiently. Whether you’re trying to free up disk space or ensure your files are organized, macOS provides several ways to determine the size of files and directories. In this blog, we’ll explore various methods to…
Introduction: In the world of Ruby on Rails and Ruby, two deceptively similar methods, includes and include?, have entirely different roles. This blog post aims to shed light on their differences with concise examples to help you optimize your code effectively. Optimizing Queries with includes: includes is a powerful method in Ruby on Rails. Its…
Introduction: Micronaut is a popular framework for building lightweight and efficient microservices in Java, Kotlin, and Groovy. When you need to integrate Kafka into your Micronaut application for event-driven processing, it’s essential to set up the integration correctly. In this guide, we’ll walk you through the process of integrating Kafka with a Micronaut application. Prerequisites:…
Introduction: Apache Kafka is a popular distributed streaming platform used for building real-time data pipelines and streaming applications. Running Kafka locally for development or testing can be a hassle, but Docker Compose makes it easy. In this guide, we’ll walk you through setting up Kafka and ZooKeeper containers using Docker Compose. Prerequisites: Docker installed on…
Introduction: Ruby on Rails is renowned for its rapid development capabilities, but as your application grows, performance issues may arise. Caching is a powerful solution to enhance performance, and in this blog post, we’ll delve into how to harness the potential of Memcached, an in-memory caching system, to optimize your Rails application. Step 1: Installing…