Is Antialiasing Supported? For WebGL 
You probably heard about WebGL context antialias property. The interesting fact about it is that having this property as a true does not guarantee antialiasing to be actually enabled. It works just a as a hint for browser but there are many reasons it might be disabled and you d like to react on this. For example by enabling shader-based FSAA.
With this library you can actually check if AA works for this machine. Once executed it adds window.antialiasingSupported: boolean property which is true if AA is available.
Installation
npm install isantialiasingsupported
How this works?
Simple.
Library creates detached canvas and draws triangle on it with WebGL.
If triangle have any pixels except white and black then it is antialiased and window.antialiasingSupported is set to true.
License
Copyright 2018 Denis Radin aka PixelsCommander
Credits
Inspired by my work at Evolution Gaming