1
我有一個Knockout UI,我將對象放入可觀察對象中。一旦你點擊一個添加到購物車按鈕來更新對象,ui不會更新。一旦你刷新頁面,將更新。數組更改時,Knockout不會更新?
我聽到很多人有這種類型的問題,但我沒有看到任何有關這種情況。
全局變量:
var koCart, koQuantity, koTotal;
功能:
function updateCart() {
**parse data **
//assign data to observables
koCart = ko.observableArray(domecart)
koQuantity = ko.observable(quantity)
koTotal = ko.observable(total)
}
視圖模型:
function viewModel() {
self = this;
this.newcart = koCart();
this.total = koTotal();
this.quantity = koQuantity();
}
var element = document.getElementById('cart');
var element2 = $('.floatingTab')[0];
var app = new viewModel();
ko.applyBindings(app, element);
ko.applyBindings(app, element2);
車用KO綁定
<nav class="cbp-spmenu cbp-spmenu-vertical cbp-spmenu-right shopify-buy__cart" id="cbp-spmenu-s2">
<div class="shopify-buy__cart__header">
<h2 class="shopify-buy__cart__title">Cart</h2>
<button class="shopify-buy__btn--close">
<span aria-role="hidden" id="x-menu">×</span>
</button>
</div>
<div id="cart" class="shopify-buy__cart-scroll">
<div class="shopify-buy__cart-items" data-bind="foreach: newcart">
<div class="shopify-buy__cart-item">
<div data-bind="style: { 'background-image': 'url(' + images + ')'}" class="shopify-buy__cart-item__image" alt="Product" style="background-repeat:no-repeat;background-size: contain;"></div>
<span class="shopify-buy__cart-item__title" data-bind="text: name"></span>
<span class="shopify-buy__cart-item__price" data-bind="text: price "></span>
<div class="shopify-buy__quantity-container">
<button class="shopify-buy__btn--seamless shopify-buy__quantity-decrement" type="button">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M4 7h8v2H4z"></path></svg>
</button>
<input class="shopify-buy__quantity shopify-buy__cart-item__quantity-input" type="number" min="0" aria-label="Quantity" data-bind="attr: {value: quantity}" style="height: 30px; border:solid 1px #d3dbe2 !important;padding-left:13px;" />
<button class="shopify-buy__btn--seamless shopify-buy__quantity-increment" type="button" databind="click: addToCard(id)" >
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M12 7H9V4H7v3H4v2h3v3h2V9h3z"></path></svg>
</button>
</div>
</div>
</div>
<div class="shopify-buy__cart-bottom">
<p class="shopify-buy__cart__subtotal__text" >SUBTOTAL</p>
<p class="shopify-buy__cart__subtotal__price"data-bind="text: total"></p>
<p class="shopify-buy__cart__notice">Shipping and discount codes are added at checkout.</p>
<button class="shopify-buy__btn shopify-buy__btn--cart-checkout" type="button">CHECKOUT</button>
</div>
</div>
</nav>
此外,拋出的錯誤是,koCart is not a function
。
它來自本地存儲。我會認爲這將是好的。有沒有辦法立即調用淘汰賽功能? – QueSo
當然,這只是一天結束時的JavaScript功能。如果您使用計算機,您可以自動從UI中的更改中進行更新。 – Drummad