The problem is with card_value.nodeValue. Value of nodeValue used on an element returns null. So you should use an alternative for nodeValue like innerText or innerHTML.
card_value.nodeValue
Something like this:
if(Number(card_value.innerText) - 1 >= 0){ card_value.textContent = cartvalue -=1; }
Thanks bro I just copied your and edited code. Because of you I fix today
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The problem is with
card_value.nodeValue. Value of nodeValue used on an element returns null. So you should use an alternative for nodeValue like innerText or innerHTML.Something like this:
Thanks bro I just copied your and edited code. Because of you I fix today