MutationObserver is not defined

[maxfrigge]

It seems that standard doesn't recognise the MutationObserver class to be globally available when writing browser JS.

What's the recommended way of dealing with this?

[rstacruz]

like this: (preferred)

window.MutationObserver

or

/* eslint-env browser */

or

/* global MutationObserver */

from the rules:

Always prefix browser globals with window – except document and navigator are okay

[maxfrigge]

Thanks a billion!