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Ruby, known for its elegant and developer-friendly syntax, handles comments in a somewhat unique way compared to many other programming languages. While single-line comments (starting with #) are ubiquitous and widely used, multiline (or block) comments have a dedicated syntax that many Ruby developers rarely touch in day-to-day work. This article dives deep into Ruby’s multiline comment system — how it works, why it’s designed this way, its quirks, best practices, common pitfalls, real-world use cases, and plenty of practical examples. We’ll cover both the official block comment syntax (=begin / =end) and the far more common idiom of using multiple single-line comments to achieve the same effect. By the …

Rubyのマルチラインコメントとその例 続きを読む "

Legacy platforms have been holding businesses together for years, even decades. They hold valuable data, run mission-critical operations, and often are significant financial investments. However, when technology improves and customer needs change, these solutions often stop enabling growth. Organizations may struggle to remain competitive because of slow performance, security vulnerabilities, limited scalability and challenges with integration. So one thing was clear: modernizing legacy platforms is no longer an option—it’s a strategic imperative. The practicality, elegance and efficiency baked into Ruby on Rails provide a clear road map for transforming legacy systems to targeted modern digital platforms that scale without compromising on security or sight. Decoding Legacy Platforms Countered Problems Legacy …

Ruby on Railsを使ったレガシー・プラットフォームの近代化 続きを読む "

The rise of Enterprise mobility has grown to become a mission-critical cornerstone for modern business. By 2026 , mobile apps will no longer be an afterthought in organizations’ digital channel thinking. Instead, mobility fuels the heart of the business — operations on premises or with customer interaction, real-time decision support, and distributed workforce support. From logistics monitoring and healthcare administration to fintech utilities and internal enterprise software, mobility ecosystems rely on backend platforms that are robust, scalable, performant, and can evolve quickly. Although there is a greater emphasis on frontend technology when we talk about mobility, the heart of enterprise mobility really is hidden in its backend. That landscape is still shaped by the great …

エンタープライズモビリティにおけるRuby on Railsの未来 2026 続きを読む "

By 2026, the Internet of Things (IoT) will bring new industrial advantages by allowing them to seamlessly connect devices, sensors, and digital systems. With a broad range of such applications from smart homes and health monitoring to logistics automation and industrial analytics, IoT applications are getting more sophisticated, utilizing data more than ever. At its core, each successful IoT ecosystem is supported by a sophisticated backend that manages huge amounts of data streams, secure communication, and real-time processing. Although conversation around IoT is generally around hardware and edge computing, backend frameworks play an important role in bringing the scalability and performance to the platform. Ruby on Rails used to be famous only for …

2026年、IoTアプリケーション開発のためのRuby on Rails 続きを読む "

Web development is progressing really fast in 2026; however, some technologies have stood the test of time due to their stability, simplicity, and laser focus on developers. Ruby on Rails is such a framework. Even though it was born a decade ago, it is still getting and serving modern web apps from all over the world within startups, enterprises, and SaaS platforms. For someone who is diving into web development, Ruby on Rails provides a solid mix of power with ease of learning. This guide is an ultimate beginner-friendly introduction to Ruby on Rails, what it is, how it works, and why it’s still widely considered in 2026, and how new developers can get started …

Ruby on Railsとは？初心者のための入門書 (2026) 続きを読む "

Random number generation is a fundamental concept in programming, and Ruby makes it both simple and powerful. From building games and simulations to generating test data, tokens, or randomized user experiences, random numbers play a crucial role in many Ruby and Ruby on Rails applications. Ruby provides built-in methods and classes that allow developers to generate random integers, floating-point numbers, reproducible sequences, and even cryptographically secure random values. In this guide, you’ll learn how random numbers work in Ruby, explore different techniques to generate them, understand when to use each approach, and see practical examples you can apply in real-world projects. Understanding Randomness in Ruby At its core, Ruby uses …

Ruby乱数：例と生成方法 続きを読む "

In today’s digital economy, nothing is more important than speed.” From startup products to SaaS features to enterprise platforms, every organization is feeling the squeeze to shrink development timelines. Time-to-market is no longer a metric – it’s an advantage. Agents who launch more products can validate ideas sooner, iterate in response to customer feedback, and stay ahead of market trends. Ruby on Rails has been written in a way that can make applications very quickly, which don’t crumble under heavy load. So, even in 2026, Rails remains an awesome strategic choice for companies looking to ship features rapidly and at scale while ensuring long-term maintainability. In this article, we take a deeper look at how Ruby on …

Ruby on Railsはどのように市場投入までの時間を短縮するか (2026) 続きを読む "

Ruby on Rails has long been known for its ability to accelerate web development without compromising on quality, scalability, or security. In 2026, it is still one of the favorite frameworks for startups, enterprises, and SaaS businesses to create scalable web applications fast. One of Rails’ key success factors is the maturity and developer-friendliness of the development process. Explaining the lifecycle of a RoR project — from Idea generation to Launch. Clarity on how an app goes from just a concept into a product that can be used and maintained going forward – some lean software development processes build it better than you found the goal. Signal helpfully details every stage of …

Ruby on Railsの開発ライフサイクルを解説 (2026) 続きを読む "

JSON (JavaScript Object Notation) remains one of the most popular data interchange formats in 2026, powering APIs, configuration files, microservices communication, and data pipelines across Ruby applications—from Rails APIs to background jobs and CLI tools. Ruby has offered excellent built-in support for JSON since version 1.9.3 through the standard library’s JSON module—no external gems required in modern Ruby versions (including Ruby 3.3+ and the upcoming Ruby 3.4/4.0 series). This article covers everything you need to know about parsing JSON in Ruby: basic usage, advanced options, file handling, error management, best practices, performance considerations, and common pitfalls. Whether you’re building a new API consumer or maintaining legacy code, these techniques will …

RubyでJSONを解析する方法：包括的ガイド 2026  続きを読む "

In the fast-evolving world of web development in 2026, where new JavaScript frameworks, AI-assisted coding tools, and serverless architectures dominate headlines, one technology quietly continues to thrive: Ruby on Rails. Far from being a relic of the past, Rails in 2026 is a mature, battle-tested powerhouse — refined over more than two decades into a framework that prioritizes developer happiness, rapid productivity, and long-term maintainability. Major platforms like Shopify, GitHub (in its early days), Basecamp, and countless startups and enterprises still rely on Rails to ship features quickly and reliably. The secret sauce? Rails’ philosophy of Convention over Configuration and Don’t Repeat Yourself (DRY) dramatically reduces boilerplate, letting developers focus …

Railsでモデルを生成する：データベースモデル入門 続きを読む "