React, Flux, GraphQL, Hack, HHVM...? All of this and more!
Webpack is a popular tool for web developers. Primary a module builder for JavaScript, but used also for managing other assets like CSS and Images. Development on Webpack remains very active and in the major version 4 comes an interesting feature, JSON Tree Shaking.
Automattic Open Sourced their JavaScript powered shell for WordPress. The move is not only significant for Automattic and WordPress, but the future of the web alltogether.
Working with JavaScript is pretty hectic in 2015. The advancement in the area have been rapid and it's been hard to find a technology that is stable enough.