Uncaught Reference Error $ is not defined

[JKP84]

I am receiving the above error when i inspect my site. it appears to be referring to the following (the line in bold/red) in my theme.js file:

var adjustStyleAndPosition = theme.Helpers.debounce(function() {
styleDropdowns(document.querySelectorAll(selectors.siteNavHasDropdown));
positionFullWidthDropdowns();
$(selectors.multicurrencySelector).on('change', function() {
$(this)
.parents('form')
.submit();
});
}, 50);

and this one:

var later = function() {
timeout = null;
if (!immediate) func.apply(context, args);
};

can anyone help me out with fixing this?

Thanks

[gina-gregory]

That error means that jQuery is not loaded on the site when that code runs. This could either be because jQuery is not added to the theme at all or it is deferred and loading AFTER this code runs.

[JKP84]

Thank you @gina-gregory - is this a big issue that will affect the site functioning?

[gina-gregory]

Yes, any code dependent on jQuery will not work if the jQuery library is not present when it tries to run.