Is there any better way to do this?
$(\'element\').removeClass(\'class-1\').removeClass(\'class-2\').removeClass(\'class-3\').removeClass(\'class-5\') ...
to
...or you can use a starts-with selector if you know the possible class names you'd like to remove. The nasty part of the task is the sheer number of classes to look for...
$(document).ready(function () {
var classesOfInterest = '';
for(var i = 1; i<=105; i++)
classesOfInterest += ' ' + 'class-' + i;
alert(classesOfInterest);
$("[class^='class-']").removeClass(classesOfInterest);
});