我是新來的,我有一個問題。當我刷新網站(或從另一側導航)時,我希望我的購物車中的商品能夠保存。如何將商品保存在購物車中? Javascript和JQuery只有
這是HTML代碼:
<!doctype html>
<html>
<body>
<h1> Shopping Cart </h1>
<div id='frm'>
<label>Movie: </label>
<input type="text" id="pname" size="20"><br>
<label>Number of tickets: </label>
<input id='pqty' type='number'><br>
<label>price class €</label>
<select id="priceclass">
<option>5</option>
<option>7</option>
<option>9</option>
<option>12</option>
</select> <br>
<label></label><button onclick="addItem()"> In the shopping cart </button>
</div>
<div id='shopping cart'></div>
</body>
</html>
這裏是我的腳本文件。我想我必須加載並保存代碼,但它不起作用。我試圖進入保存和加載 - 的功能,但什麼是錯的:
inames = []
iqtyp = []
iprice = []
function addItem(){
inames.push(document.getElementById('pname').value);
iqtyp.push(parseInt(document.getElementById('pqty').value));
iprice.push(parseInt(document.getElementById('priceclass').value));
displayCart();
}
function displayCart() {
shoppingcartdata = '<table><tr><th>Movie</th><th>Number of tickets</th><th>Price class € </th><th>Total €</th></tr>';
total = 0;
for (i=0; i<inames.length; i++){
total += iqtyp[i] * iprice[i]
shoppingcartdata += "<tr><td>" + inames[i] +"</td><td>" + iqtyp[i] + "</td><td>" + iprice[i] + "</td><td>" + iqtyp[i] * iprice[i] + "</td><td><button onclick='delElement(" + i + ")' >Delete</button></td></tr>"
}
shoppingcartdata += '<tr><td></td><td></td><td></td><td>' + total + '</td></tr></table>'
document.getElementById('shopping cart').innerHTML = shoppingcartdata;
saveCart();
}
function saveCart(){
localStorage.setItem("shoppingcartdata", JSON.stringify(cart));
}
function loadCart(){
cart = JSON.parse(localStorage.getItem("shoppingcartdata"));
}
loadCart;
function delElement(a){
inames.splice(a,1);
iqtyp.splice(a,1)
iprice.splice(a,1)
displayCart()
}
哦,我把loadCart改正爲loadCart(); ! – Mnktra