IE11 gives SCRIPT1002 error when defining class in javascript

Question

I have some trouble with IE11 and a static javascript class I wrote.

The error I get is:

SCRIPT1002: Syntax error rgmui.box.js (6,1)

Answer 1

Hate to reopen such an old issue, but it still shows up high in the results, so I'll add what I found out:

To reiterate what @Mikey and @REJH said, classes are not recognized by IE11.

That said, tools like Babel will allow you to translate classes into something that will run on IE11.