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At the Appsilon-sponsored Shiny conference this week, RStudio’s Barret Schloerke introduced shinytest2, a new R package designed to enhance the testing capabilities for Shiny web applications. Now available on CRAN, shinytest2 version 0.1.0 enables automated testing of app interactivity using chromote, a headless Chrome browser. This tool aims to simplify the process of ensuring Shiny apps behave as expected across user interactions, significantly improving testing workflows for developers. One of the highlights of shinytest2 is its record_test() function, which Schloerke demonstrated during the conference. This function captures user interactions within the testing browser and converts them into code that can…

The developers behind Deno, the JavaScript and TypeScript runtime, are exploring the concept of JavaScript containers as a high-level alternative to traditional Linux containers. This initiative could reshape how developers think about containerization, offering a potentially simpler and more streamlined approach to running web services by leveraging the universality of JavaScript. According to Ryan Dahl, creator of both the Deno and Node.js runtimes, JavaScript’s position as a “universal scripting language” opens new possibilities for container-like abstractions that could redefine server-side development. In a recent blog post, Dahl highlighted the enduring utility of Linux containers, popularized by Docker, for distributing server…

Pulumi, a leading vendor in the infrastructure as code (IaC) space, has expanded its platform to support Java and YAML, providing developers with even more flexibility in managing and provisioning infrastructure. This move aligns with Pulumi’s commitment to enabling software developers to use their preferred programming languages rather than being confined to domain-specific languages or configuration formats. By integrating Java and improving YAML support, Pulumi continues to broaden its appeal among a diverse range of developers and enterprises. Pulumi’s open-source infrastructure as code SDK has always stood out for its ability to work with mainstream programming languages such as Python,…

JetBrains IDE users can now take advantage of cloud-based development through an exciting new integration with Gitpod. This collaboration, announced on April 27, allows developers to seamlessly access their source code hosted in temporary development environments directly from JetBrains IDEs running in the cloud. The integration leverages the capabilities of Gitpod’s platform alongside JetBrains Gateway, a remote development tool currently in beta, making it easier than ever for developers to work on their projects from virtually anywhere. Gitpod is an open-source platform designed to automate the provisioning and orchestration of developer environments. It allows developers to spin up cloud-based development…

Python is widely admired for its simplicity, versatility, and extensive ecosystem of libraries, but despite its many strengths, there are some features that many developers wish for that won’t be making their way into the language anytime soon. While Python continues to evolve and improve, a few commonly requested additions have been met with resistance or are simply not on the horizon. These are not necessarily bad ideas, but they highlight the trade-offs that come with Python’s design philosophy. One of the most frequently mentioned requests is the introduction of a statically typed, compiled version of Python. The idea of…

TypeScript 4.7 officially became available on May 24, marking a significant update for the popular strongly-typed superset of JavaScript. With this release, Microsoft introduces important enhancements, including official support for ECMAScript modules (ESM) in Node.js 16. This marks an exciting development for developers as ESM offers improved modularity and code reuse. The release also includes numerous other improvements aimed at making TypeScript easier and more efficient for developers to use in a variety of JavaScript environments. One of the major highlights of TypeScript 4.7 is the integration of ESM support for Node.js 16, which came in as a last-minute addition.…

Project Leyden, a proposal that has been discussed within the Java community for over two years, is finally gaining traction as it moves forward. Aiming to tackle several longstanding issues with Java, including slow startup times, sluggish performance peaks, and a large footprint, this initiative promises to make significant improvements to the Java platform. Mark Reinhold, the chief architect of the Java platform group at Oracle, officially announced on May 20 that the project is now ready to proceed, marking a crucial step in addressing some of the performance bottlenecks Java developers have faced for years. The core concept behind…

Every programming language presents a trade-off between two types of speed: development speed and execution speed. Python, while designed to promote rapid development with its simple syntax and readability, tends to prioritize the speed of writing code over execution speed. This makes Python an excellent language for prototyping and smaller projects, but for more performance-intensive tasks, its execution speed might fall short. In these cases, identifying performance bottlenecks becomes essential to improve the efficiency of your application. A widely accepted principle in software development is “Measure, don’t guess.” This applies especially to performance optimization. While it’s tempting to make assumptions…

The Jakarta Persistence API (JPA), formerly known as Java Persistence API, is a specification within the Java ecosystem that deals with the concept of persistence—the mechanism by which Java objects can exist beyond the application process that created them. This means that rather than merely storing data in memory, JPA allows Java applications to save and retrieve data from a database, enabling business objects to persist even after the application shuts down or restarts. While not every Java object needs to be persisted, key objects in business applications—such as user records or transaction data—often require persistence to function properly. JPA…

A recent global developer survey has highlighted the continued dominance of JavaScript and Python, while also shedding light on the rapid rise of Rust, according to the “State of the Developer Nation, 22nd Edition” report by SlashData. The survey, conducted between December 2021 and February 2022, gathered insights from over 20,000 developers across 166 countries, offering a comprehensive look at the current state of programming languages. For the tenth consecutive survey, JavaScript emerged as the most popular programming language, with approximately 17.5 million developers using it. This maintains the language’s status as the leading tool for web development. Over the…