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[英]How do I get JSON data from one HTML Apps Script file in another HTML file?
[英]How do I read data from one HTML file and display it in another with JavaScript
我有一个 HTML 文件,其中包含一个包含项目及其价格的表。 我成功地让 javascript 能够遍历表格并计算价格总和,但前提是它位于同一个 html 文件中。 我想在单独的 html 文件中显示此计算,但我在这样做时遇到了麻烦。
//testTable.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<style>
table, th, td {
border: 1px solid black;
}
</style>
</head>
<body>
<h2>Html Table</h2>
<table id="EstoreTable" style="width:100%">
<tr>
<th>Item Name</th>
<th>Quantity</th>
<th>Price</th>
</tr>
<tr>
<td>iPhone X</td>
<td>10</td>
<td>299.99</td>
</tr>
<tr>
<td>Apple Watch 3</td>
<td>12</td>
<td>250.00</td>
</tr>
<tr>
<td>MacBook Pro 13" </td>
<td>7</td>
<td>1199.99</td>
</tr>
</table>
<a href="assign1_agm75_checkout.html" target="_blank" id="checkout">Checkout</a>
<script src="ShoppingAmount.js"></script>
</body>
</html>
//ShoppingAmount.js
function getCheckoutAmounts()
{
var table = document.getElementById('EstoreTable'); //data from TestTable.html
var sum = 0,
taxTotal = 0,
tax = .0825,
shipping = 5.99,
due = 0;
for (var i = 1; i < table.rows.length; i++)
{
sum = sum + parseFloat(table.rows[i].cells[2].innerHTML); //stores total price into sum
}
taxTotal = tax * sum; //stores calculated tax
due = sum + taxTotal + shipping;
// SET VIA query string
this.href += "?sum=" + sum;
this.href += "?taxTotal=" + taxTotal;
this.href += "?shipping=" + shipping;
this.href += "?due=" + due;
// SET SUM VIA localStorage
window.localStorage.setItem("sum", sum);
window.localStorage.setItem("taxTotal", taxTotal);
window.localStorage.setItem("shipping", shipping);
window.localStorage.getItem("due", due);
}
document.querySelector("#checkout").addEventListener("click", getCheckoutAmounts);
//Checkout.html
<html>
<h1>Checkout</h1>
Total Shopping Amount: $<span id="Shopamount"></span><br>
Total Tax: $<span id="TaxTotal"></span><br>
Total Shipping Charges: $<span id= "charges"></span><br>
Total Amount Due: $<span id="total"></span><br>
<script>
// GET data VIA localStorage
document.querySelector("#Shopamount").textContent = window.localStorage.getItem("sum");
document.querySelector("#TaxTotal").textContent = window.localStorage.getItem("taxTotal");
document.querySelector("#charges").textContent = window.localStorage.getItem("shipping");
document.querySelector("#total").textContent = window.localStorage.getItem("due");
// GET SUM VIA query string
let queryString = document.location.search;
let sum = queryString.split("=")[1];
let taxTotal = queryString.split("=")[1];
let shipping = queryString.split("=")[1];
let due = queryString.split("=")[1];
document.querySelector("#Shopamount").textContent = sum;
document.querySelector("TaxTotal").textContent = taxTotal;
document.querySelector("charges").textContent = shipping;
document.querySelector("total").textContent = due;
</script>
目标是让它在 Checkout.html 中打印,但我已经做了几个小时没有结果。 请帮忙。 [更新]:在@Kostax 的帮助下,我设法显示了一些计算,但它与一些错误混合在一起。
这是帮助您入门的基本设置。 testTable 中的 JS 计算总数,一旦单击 Checkout 按钮并将总和存储在 localStorage 中。 然后链接会被触发并将您重定向到结帐页面,其中从 localStorage 检索总和值并显示在页面中。
测试表.html :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style>
table,
th,
td {
border: 1px solid black;
}
</style>
</head>
<body>
<h2>Html Table</h2>
<table id="EstoreTable" style="width:100%">
<tr>
<th>Item Name</th>
<th>Quantity</th>
<th>Price</th>
</tr>
<tr>
<td>iPhone X</td>
<td>10</td>
<td>299.99</td>
</tr>
<tr>
<td>Apple Watch 3</td>
<td>12</td>
<td>250.00</td>
</tr>
<tr>
<td>MacBook Pro 13" </td>
<td>7</td>
<td>1199.99</td>
</tr>
</table>
<a href="Checkout.html" target="_blank" id="checkout">Checkout</a>
<script src="ShoppingAmount.js"></script>
</body>
</html>
购物金额.js :
function getShoppingAmount(e) {
var table = document.getElementById('EstoreTable'); //data from TestTable.html
var sum = 0;
for (var i = 1; i < table.rows.length; i++) {
sum = sum + parseFloat(table.rows[i].cells[2].innerHTML); //stores total price into sum
}
// SET SUM VIA query string
this.href += "?sum=" + sum;
// SET SUM VIA localStorage
window.localStorage.setItem( "sum", sum );
}
document.querySelector("#checkout").addEventListener("click", getShoppingAmount );
结帐.html :
<html>
<h1>Checkout</h1>
Total Shopping Amount: <span id="Shopamount" ></span>
<script>
// GET SUM VIA localStorage
document.querySelector("#Shopamount").textContent = window.localStorage.getItem("sum");
// GET SUM VIA query string
let queryString = document.location.search;
let sum = queryString.split("=")[1];
document.querySelector("#Shopamount").textContent = sum;
</script>
[ 更新 ]包括通过@Jonathan Gray 指出的查询字符串机制在两个页面之间传递数据的另一种方式
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