Transaction - Update Total Field

by bizamajig

HTML

<div class="product">
        <a class="buyme" href="#">Add to subtotal</a><br/>
        <span class="pricetag">55</span>€
    </div>

    <div class="product">
        <a class="buyme" href="#">Add to subtotal</a><br/>
        <span class="pricetag">10</span>€
    </div>

    <div class="product">
        <a class="buyme" href="#">Add to subtotal</a><br/>
        <span class="pricetag">2</span>€
    </div>

    <br/>
    <span id="subtotal">0</span>€

JavaScript

var subtotal = 0;
    
    function addToSubtotal( value ) {
        subtotal += value;
        $('#subtotal').html(subtotal);
    }
    
    $(document).ready( function(){
        $('.product').on('click', 'a.buyme', null, function(e){
            console.log( $(this).siblings('.pricetag') );
            addToSubtotal( parseInt( $(this).siblings('.pricetag').html() ));
        });
    });