Uncaught ReferenceError: slide is not defined
<p>I'm trying to make the left arrow in my page change the background color of the container on click, but whenever I click it I get this error: <code>(index):147 Uncaught ReferenceError: slide is not defined</code> I've tried every solution available here and still no luck. Here's the jsfiddle: <a href="https://jsfiddle.net/mLr6oax0/" rel="nofollow noreferrer">https://jsfiddle.net/mLr6oax0/</a></p>