Question

I have this line of JS which I have determined is wrong.

classes[i] = document.getElementsByAttribute ("class", show_hide_class_selectors[i]);

In context

for (var i = 0; i< show_hide_class_selectors.length; i++) {
        classes[i] = document.getElementsByAttribute ("class", show_hide_class_selectors[i]);
        alert ("ok");
    }

Can someone see where this is wrong?

Answer 1

You invented a non-standard getElementsByAttribute method on the document object, and the code is failing because it doesn’t exist.

You should probably looking at using a selector engine; every major JS library includes one, and there are a number of tiny implementations you can use.