Help with a syntax error

JavaScript
1

I’m doing the Basic Data Structures lessons. Specifically this one, which asks you to check for the presence of an element in an array with indexOf().

Before I even enter anything into the test field, the console says:

Syntax Error: invalid regular expression flag s

And no correct solutions to the problem will allow me to progress the challenge (including the provided solutions in the Hints page). What’s causing this?

2

Have you tried clearing your browser cache?

3

Tried just now, with no change.

I’m on Firefox 76.0.1, perhaps that’s an issue.

ISSUE SOLVED:
Outdated browser, embarrassing. Hopefully this helps somebody anyway.

1 Like