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Compiled, Typed, Ruby-Inspired Crystal Language is Ready for Production - Q&A with Beta Ziliani

The Crystal language is ready for production, 12 years after inception. Crystal is compiled for performance, typed for safety, and Ruby-like for productivity. Due to the strong type inference, developers need only sparse type annotations. We interviewed the head of the Crystal team on the language tradeoffs, the present features and the language roadmap.

Bruno Couriol Beta Ziliani
on May 08, 2021
Development

Is Ruby Pass-by-Value Or Pass-by-Reference?

This article will delve into Ruby internals to explain how parameters are passed into functions. As you will see, it is not immediate to say if Ruby passes parameters by value or by reference, but understanding how this works will help you to write better programs.

Jey Geethan
on Feb 22, 2021
Development

Programming Languages InfoQ Trends Report - October 2019

This article provides a summary of how the InfoQ editorial team currently sees the adoption of technology and emerging trends within the programming language space, as of Q3, 2019.

Abel Avram Arthur Casals Dylan Schiemann Charles Humble Werner Schuster Dustin Schultz Ben Evans Jonathan Allen
on Oct 01, 2019
DevOps

Monitoring SRE's Golden Signals

Golden signals are increasingly popular these days due to the rise of SRE. This article outlines what golden signals are, and how to monitor and use them in the context of various common services.

Steve Mushero
on Apr 27, 2018
Mobile

Mobile DNUN: Danger Notification and User Navigation

This article introduces the authors’ Danger Notification and User Navigation (DNUN) application, which works in conjunction with a geolocation system to save the location of users or objects for emergency rescue or later navigation. The DNUN mobile application can help rescue a user by sending an email with a danger notification to intended contacts.

Hosam El-Ocla Karthik Reddy Nalla
on Jul 11, 2017
Development

Effective Ruby LiveLessons - An Interview with Sam Phippen

Effective Ruby LiveLessons by Sam Phippen is a series of video lectures explaining best practices used by expert Rubyists targeting all levels of Ruby programmers. The video lessons contain hands-on demonstrations to help the viewer understand how each item is put into action. InfoQ spoke with the author about the lessons learned from the video and Ruby on Rails best practices.

Alex Giamas
on Dec 02, 2015
DevOps

Executable Images - How to Dockerize Your Development Machine

Every developer knows the pain of incompatible software. By using Docker executable images developers can take advantage of container technology to better control their development environments.

Quinten Krijger
on Aug 29, 2015
Author Q&A on Programming for Kids

The book Programming for Kids contains many examples that kids in the age from 9-14 can use to learn the basics of programming, using the programming language Ruby. It also shows them how they can use the command line on a Mac computer. Parents can sit beside their kids and follow along. InfoQ did an interview with the author Peter Armstrong about how kids learn computer programming.

Ben Linders
on Mar 07, 2014
The Technology behind Codenvy. An Interview with Tyler Jewell, CEO

Codenvy is an online IDE supporting applications development in Java, JavaScript, HTML5, PHP, Ruby and other languages, with built-in support for deploying the apps on a PaaS. This article includes an interview with Tyler Jewell, CEO, detailing some of the technologies behind Codenvy.

Abel Avram
on Jul 07, 2013
Interview with Sandi Metz on Practical Object-Oriented Design in Ruby

On occasion of the second edition of her book “Practical Object-Oriented Design in Ruby: An Agile Primer”, InfoQ talked with Sandi about how her book was received, learning from open source code, making sensible use of code analysis tools and other topics.

Manuel Pais
on Jun 28, 2013
Interview and Book Review: The LogStash Book, Log Management Made Easy

James Turnbull makes a compelling case for using Logstash for centralizing logging by explaining the implementation details of Logstash within the context of a logging project. The book targets both small companies and large enterprises through a two sided case; both for the low barrier to entry and the scaling capabilities.

Aslan Brooke
on May 20, 2013
Interview and Video Review: Working with Big Data: Infrastructure, Algorithms, and Visualizations

Paul Dix leads a practical exploration into Big Data in this video training series. The first five lessons of the training span multiple server systems with a focus on the end to end processing of large quantities of XML data from real Stack Exchange posts. He completes the training with a lesson on developing visualizations for gaining insights from the macro level analysis of Big Data.

Aslan Brooke
on May 02, 2013