Microsoft's open source JavaScript library debuts with version 3.0 of the JavaScript library for building cross-platform/cross-browser-enabled apps.

Microsoft released another tool in the augmented reality developer's kit with HoloJS, to create UWP apps supporting HoloLens using JavaScript and WebGL.

Potentially helping developers more quickly build cross-platform applications, Microsoft is releasing as open source its WinJS JavaScript library for building Windows-styled controls.