Core Constants
Revision Number
THREE.REV
The current three.js [link:https://github.com/mrdoob/three.js/releases revision number].
Mouse Buttons
THREE.MOUSE.LEFT
THREE.MOUSE.MIDDLE
THREE.MOUSE.RIGHT
Source
[link:https://github.com/mrdoob/three.js/blob/master/src/constants.js src/constants.js]