New programming languages appear with such frequency that it's difficult to know which are going to stay around, be worth learning, and prove useful for the work you do. In an online conference inspired by the Emerging Languages track at the upcoming O'Reilly Open Source Convention (May 16–19 in Austin, TX), you'll get the lowdown on four relative newcomers—Kotlin, Rust, Elm, and Go. You'll find out why each was developed, see where its particular strengths (and weaknesses) lie, and learn what you need to know to start using these languages in your own projects.
Kotlin - Ready for production
When JetBrains unveiled Project Kotlin (a new language for the JVM) in 2011, it had already been under development for nearly a year. Fast-forward to the present, on the brink of Kotlin's first release, and you may be surprised to learn that it's been used in production for some years now. Both inside and outside of JetBrains, people are deploying Kotlin applications for Android OS, web applications, and many other uses. They choose Kotlin for its significant gains in conciseness, readability, and safety—without the drawbacks that adopting a new language brings (e.g., a higher learning curve or lack of interoperability with existing code and ecosystems). Hadi Hariri offers an introduction to Kotlin and uses a problem-solution approach to demonstrate how it can help you in your daily development.
Starting Rust from a scripting background
E. Dunham (presenting at OSCON)
Folding time with signals in Elm
David Crespo (presenting at OSCON)
Building amazing cross-platform command-line apps in Go
Once thought relics of a mouseless age, command-line interfaces (CLIs) are making a huge comeback in a new and evolved form. Go is an excellent platform for CLI development due to its raw power, easy syntax, and painless distribution. Ashley McNamara teaches the techniques, principles, and libraries that you need to build great CLI apps. You'll learn how to create user-friendly command-line interfaces and command suites and will reinforce your knowledge by building your own app. By the end of Ashley's talk, you'll have a working knowledge of Go and your very own functioning CLI app.