Mandatory Checkbox on product page

[TBSTransfers]

I am trying to add mandatory check buttons to 2 of my custom product pages. I have the boxes but it is allowing to not check boxes and checkout. I have tried all the things I have found on here  and google and nothing works

[TBSTransfers]

myself. I have managed doing all without trouble

[TBSTransfers]

I tired both and neither worked where would I put the java one? maybe im putting in wrong place 

this is how its typed 

$(document).on('click', '.checkout-btn', function(event) { if ($('.Yes I have uploaded high resolution files (PNG 300dpi, SVG, EPS, Illustrator), Yes I have uploaded with transparent background:checkbox:checked').length < 2) { event.preventDefault(); alert('Please select both checkboxes before proceeding to checkout.'); } });

bolded are checkbox names

[trnngctu]

I think his code can solve your probem

https://edcodes.gumroad.com/l/terms-checkbox?layout=profile