Hi All on click button I need to add object to array and then write array to cookies. From the start this array can be not empty so I parse cookie first.

function addToBasket(){
        var basket = $.parseJSON($.cookie("basket"))

        if (basket.length==0||!basket){
            var basket=[];
            basket.push(
                { 'number' : this.getAttribute('number'),
                    'type' : this.getAttribute('product') }
            );
        }
        else{
            basket.push(
                { 'number' : this.getAttribute('number'),
                    'type' : this.getAttribute('product') }
            );
        }
        $.cookie("basket", JSON.stringify(basket));
    }

And HTML

<button type="button" class="btn btn-success btn-lg" number="12" product="accs" onclick="addToBasket()">Add</button>

Unfortunately I'm getting Uncaught ReferenceError: addToBasket is not defined onclick. Can't understand what am I doing wrong? Thanks!