javascript onclick event, add +1 and -1 in quantity product

I tried to make a code with Jquery when I click the + button, the field quantity increases, and when I press the – button the quantity decreases, and it works

but when I press another color and size, the field jumps no longer +1
do +2

first round work

second round jump

However, this method still doesn’t work for me. Can anyone help? Thank you.

$('#partQuantity').on('click', "#plus" + data[k].Id, function(event) {
    event.preventDefault();
    var quantityInput = document.getElementById('qua' + data[k].SkuSizeId); // Assuming 'SkuSizeId' is the correct property
                                            
    if (quantityInput) {
        var currentValue = parseInt(quantityInput.value) || 1;

        if (currentValue < data[k].OnHand) {
            quantityInput.value = currentValue + 1;
        }
    } 
});
                                   
                                    

                                    
  $('#partQuantity').on('click', "#minus" + data[k].Id, function(event) {
event.preventDefault();

var quantityInput = document.getElementById('qua' + data[k].SkuSizeId); // Assuming 'SkuSizeId' is the correct property


var currentValue = parseInt(quantityInput.value);
if (currentValue > 1) {
    quantityInput.value = currentValue - 1;
 }

});