手把手教你使用JS編寫一個(gè)購物車界面
更新時(shí)間：2025年07月22日 10:02:38 作者：正追軍夢(mèng)
使用JavaScript實(shí)現(xiàn)購物車功能是一個(gè)常見的開發(fā)任務(wù),下面這篇文章主要介紹了如何使用JS編寫一個(gè)購物車界面的相關(guān)資料,文中通過代碼介紹的非常詳細(xì),需要的朋友可以參考下
前言
今天我們來剖析一個(gè)精心設(shè)計(jì)的家具商店購物車頁面，這個(gè)頁面不僅美觀大方，還具備豐富的交互功能。讓我們一步步拆解它的設(shè)計(jì)理念和技術(shù)實(shí)現(xiàn)！
頁面展示
頁面整體結(jié)構(gòu)
這個(gè)購物車頁面采用了經(jīng)典的電商布局模式：
<!DOCTYPE html>
<html>
<head>
<!-- 元信息和樣式 -->
</head>
<body>
<header>...</header>
<div class="banner">...</div>
<div class="container">...</div>
<footer>...</footer>
</body>
</html>
這種結(jié)構(gòu)清晰明了，用戶一眼就能理解頁面的組成。就像走進(jìn)一家實(shí)體店一樣：招牌(header)、促銷海報(bào)(banner)、商品展示區(qū)(container)和出口信息(footer)。
設(shè)計(jì)亮點(diǎn)分析
1. 優(yōu)雅的色彩方案
使用了紫色和金色作為主色調(diào)，既顯高貴又不失現(xiàn)代感：
:root {
--primary-purple: #673ab7;
--secondary-gold: #d4af37;
--dark-bg: #1a1a2e;
--light-bg: #f8f9fa;
}
紫色代表奢華，金色象征品質(zhì)，完美契合家具商店的定位。這種配色方案就像為頁面穿上了"高級(jí)定制西裝"！
2. 響應(yīng)式設(shè)計(jì)
頁面在多種設(shè)備上都能完美展示：
@media (max-width: 768px) {
.cart-container {
grid-template-columns: 1fr;
}
/* 其他移動(dòng)端優(yōu)化 */
}
在小屏幕上，購物車布局會(huì)自動(dòng)調(diào)整為單列，確保在手機(jī)上也能輕松操作。這就像把家具店"縮小"放進(jìn)用戶口袋！
3. 精美的橫幅設(shè)計(jì)
頂部橫幅采用了巧妙的CSS技巧：
.banner::before {
content: "";
position: absolute;
/* 漸變和斜線圖案 */
background:
linear-gradient(135deg, transparent 0%, transparent 50%, var(--dark-bg) 50%),
repeating-linear-gradient(-45deg, var(--secondary-gold), var(--secondary-gold) 5px, transparent 5px, transparent 10px);
}
這種設(shè)計(jì)創(chuàng)造出類似高檔家具包裝紙的紋理效果，視覺上既專業(yè)又精致。
購物車功能實(shí)現(xiàn)
1. 商品展示與操作
每個(gè)商品項(xiàng)都包含詳細(xì)信息和控制元素：
<div class="cart-item" data-id="1" data-price="165.00">
<div class="item-details">...</div>
<div class="item-price">$165.00</div>
<div class="quantity-control">
<button class="quantity-btn minus">-</button>
<input type="number" class="quantity-input" value="1" min="1">
<button class="quantity-btn plus">+</button>
</div>
<div class="item-subtotal">
$<span class="item-total">165.00</span>
<button class="remove-btn"><i class="fas fa-trash"></i></button>
</div>
</div>
2. 動(dòng)態(tài)計(jì)算邏輯
JavaScript負(fù)責(zé)所有計(jì)算邏輯：
// 更新購物車總價(jià)
function updateCartTotals() {
const subtotal = cart.items.reduce((total, item) => {
return total + (item.price * item.quantity);
}, 0);
const shippingCost = parseFloat(shippingOption.dataset.cost);
const total = subtotal + shippingCost - cart.couponValue;
cartSubtotal.textContent = subtotal.toFixed(2);
cartTotal.textContent = total.toFixed(2);
}
這種實(shí)現(xiàn)方式確保價(jià)格計(jì)算實(shí)時(shí)準(zhǔn)確，就像有個(gè)"數(shù)學(xué)天才"在后臺(tái)默默工作！
3. 交互反饋
當(dāng)用戶移除商品時(shí)，有平滑的動(dòng)畫效果：
itemElement.style.opacity = '0';
setTimeout(() => {
itemElement.remove();
updateCartCount();
}, 300);
這種細(xì)節(jié)處理讓用戶操作有明確的視覺反饋，就像商品真的被"移出"購物車一樣。
用戶體驗(yàn)優(yōu)化
1. 空購物車狀態(tài)
當(dāng)購物車清空時(shí)，頁面會(huì)顯示友好的提示：
<div class="empty-cart">
<h3>Your cart is empty</h3>
<p>Add items to continue shopping</p>
<button class="continue-btn">START SHOPPING</button>
</div>
這避免了用戶面對(duì)空白頁面的困惑，就像店員友好地提醒：“您的購物車空啦，看看新品吧！”
2. 運(yùn)費(fèi)選項(xiàng)
提供多種運(yùn)費(fèi)選擇，默認(rèn)選中免費(fèi)選項(xiàng)：
<div class="shipping-option">
<input type="radio" id="free-shipping" name="shipping" value="free-shipping" data-cost="0" checked>
<label for="free-shipping">Free Shipping</label>
</div>
這種設(shè)計(jì)既符合商業(yè)策略（鼓勵(lì)用戶達(dá)到免郵門檻），又提升了用戶體驗(yàn)。
頁面實(shí)現(xiàn)的全部代碼
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Shopping Cart - Furniture Store</title>
<link rel="stylesheet" rel="external nofollow" >
<style>
:root {
--primary-purple: #673ab7;
--secondary-gold: #d4af37;
--dark-bg: #1a1a2e;
--light-bg: #f8f9fa;
--text-dark: #333;
--text-light: #fff;
--success: #28a745;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
background-color: #f5f5f5;
color: var(--text-dark);
line-height: 1.6;
}
/* Header Styles */
header {
background-color: #fff;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
position: sticky;
top: 0;
z-index: 100;
}
.top-nav {
background-color: var(--dark-bg);
padding: 0.5rem 0;
text-align: center;
color: var(--text-light);
font-size: 0.9rem;
}
.top-nav p {
margin: 0;
}
.main-nav {
display: flex;
justify-content: space-between;
align-items: center;
padding: 1rem 5%;
}
.logo {
color: var(--primary-purple);
font-weight: bold;
font-size: 1.8rem;
text-decoration: none;
}
.search-bar {
flex-grow: 1;
margin: 0 2rem;
}
.search-bar input {
width: 100%;
padding: 0.7rem 1rem;
border: 1px solid #ddd;
border-radius: 50px;
font-size: 0.95rem;
}
.nav-icons {
display: flex;
gap: 1.5rem;
}
.nav-icons a {
color: var(--text-dark);
text-decoration: none;
font-size: 1.2rem;
position: relative;
}
.nav-icons .cart-icon span {
background-color: var(--primary-purple);
color: white;
font-size: 0.7rem;
position: absolute;
top: -8px;
right: -8px;
width: 18px;
height: 18px;
border-radius: 50%;
display: flex;
justify-content: center;
align-items: center;
}
/* Banner Styles */
.banner {
background: linear-gradient(rgba(26, 26, 46, 0.9), rgba(26, 26, 46, 0.9)),
url('https://images.unsplash.com/photo-1493663284031-b7e3aefcae8e?auto=format&fit=crop&w=1350&q=80');
background-size: cover;
background-position: center;
padding: 2.5rem;
color: white;
text-align: center;
position: relative;
margin-bottom: 3rem;
}
.banner::before {
content: "";
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background:
linear-gradient(135deg, transparent 0%, transparent 50%, var(--dark-bg) 50%),
repeating-linear-gradient(-45deg, var(--secondary-gold), var(--secondary-gold) 5px, transparent 5px, transparent 10px);
background-size: 200% 200%, cover;
opacity: 0.1;
}
.banner h1 {
font-size: 2.5rem;
margin-bottom: 0.5rem;
position: relative;
z-index: 2;
}
.banner p {
font-size: 1.1rem;
opacity: 0.9;
max-width: 600px;
margin: 0 auto;
position: relative;
z-index: 2;
}
/* Main Content */
.container {
max-width: 1200px;
margin: 0 auto;
padding: 0 2rem;
}
.cart-container {
display: grid;
grid-template-columns: 2fr 1fr;
gap: 2rem;
margin-bottom: 3rem;
}
@media (max-width: 768px) {
.cart-container {
grid-template-columns: 1fr;
}
}
.cart-items {
background: white;
border-radius: 8px;
box-shadow: 0 5px 15px rgba(0,0,0,0.05);
overflow: hidden;
}
.cart-header {
display: grid;
grid-template-columns: 3fr 1fr 1fr 1fr;
padding: 1rem 1.5rem;
background-color: var(--light-bg);
font-weight: bold;
border-bottom: 1px solid #eee;
}
.cart-item {
display: grid;
grid-template-columns: 3fr 1fr 1fr 1fr;
align-items: center;
padding: 1.5rem;
border-bottom: 1px solid #eee;
}
.item-details {
display: flex;
align-items: center;
}
.item-image {
width: 80px;
height: 80px;
border-radius: 5px;
overflow: hidden;
margin-right: 1rem;
background-color: #f5f5f5;
}
.item-image img {
width: 100%;
height: 100%;
object-fit: cover;
}
.item-info h3 {
font-size: 1.1rem;
margin-bottom: 0.3rem;
}
.item-info p {
color: #666;
font-size: 0.95rem;
}
.item-price, .item-subtotal {
font-weight: 600;
color: var(--text-dark);
}
.quantity-control {
display: flex;
align-items: center;
}
.quantity-btn {
width: 28px;
height: 28px;
border: 1px solid #ddd;
background: none;
border-radius: 4px;
cursor: pointer;
font-size: 1rem;
display: flex;
justify-content: center;
align-items: center;
}
.quantity-input {
width: 45px;
text-align: center;
border: 1px solid #ddd;
margin: 0 8px;
padding: 4px;
border-radius: 4px;
font-size: 1rem;
}
.remove-btn {
background: none;
border: none;
color: #999;
cursor: pointer;
transition: color 0.3s;
font-size: 0.9rem;
display: flex;
align-items: center;
margin-left: 10px;
}
.remove-btn:hover {
color: #ff5252;
}
.remove-btn i {
margin-right: 5px;
}
/* Cart Summary */
.cart-summary {
background: white;
border-radius: 8px;
box-shadow: 0 5px 15px rgba(0,0,0,0.05);
padding: 1.5rem;
height: fit-content;
}
.cart-summary h2 {
font-size: 1.4rem;
margin-bottom: 1.5rem;
padding-bottom: 1rem;
border-bottom: 1px solid #eee;
}
.summary-row {
display: flex;
justify-content: space-between;
margin-bottom: 1rem;
padding: 0.5rem 0;
}
.total-row {
font-weight: bold;
font-size: 1.1rem;
padding-top: 1rem;
border-top: 1px solid #eee;
margin-top: 0.5rem;
}
.coupon-section {
margin: 1.5rem 0;
}
.coupon-section h3 {
font-size: 1.1rem;
margin-bottom: 0.5rem;
color: #555;
}
.coupon-input {
display: flex;
gap: 0.5rem;
}
.coupon-input input {
flex-grow: 1;
padding: 0.7rem 1rem;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 0.95rem;
}
.coupon-input button {
background: var(--dark-bg);
color: white;
border: none;
border-radius: 4px;
padding: 0 1.5rem;
cursor: pointer;
transition: background 0.3s;
}
.coupon-input button:hover {
background: #333;
}
.shipping-section {
margin-bottom: 1.5rem;
}
.shipping-section h3 {
font-size: 1.1rem;
margin-bottom: 0.5rem;
color: #555;
}
.shipping-options {
border: 1px solid #eee;
border-radius: 4px;
padding: 0.5rem;
}
.shipping-option {
margin-bottom: 0.5rem;
}
.shipping-option:last-child {
margin-bottom: 0;
}
.checkout-btn {
width: 100%;
padding: 1rem;
background-color: var(--primary-purple);
color: white;
border: none;
border-radius: 4px;
font-size: 1.1rem;
font-weight: 600;
cursor: pointer;
transition: background-color 0.3s;
display: flex;
justify-content: center;
align-items: center;
gap: 0.5rem;
}
.checkout-btn:hover {
background-color: #5833a0;
}
/* Cart Actions */
.cart-actions {
display: flex;
justify-content: space-between;
padding: 1.5rem;
background: white;
border-top: 1px solid #eee;
}
.action-btn {
padding: 0.7rem 1.5rem;
border-radius: 4px;
cursor: pointer;
font-weight: 600;
transition: all 0.3s;
}
.update-btn {
background-color: var(--dark-bg);
color: white;
border: none;
}
.update-btn:hover {
background-color: #333;
}
.continue-btn {
background: none;
border: 1px solid #ddd;
color: var(--text-dark);
}
.continue-btn:hover {
background-color: #f8f8f8;
border-color: #ccc;
}
/* Footer */
footer {
background-color: var(--dark-bg);
color: var(--text-light);
padding: 3rem 0 1.5rem;
margin-top: 3rem;
}
.footer-content {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 2rem;
max-width: 1200px;
margin: 0 auto;
padding: 0 2rem;
}
.footer-column h3 {
margin-bottom: 1.2rem;
position: relative;
padding-bottom: 0.5rem;
}
.footer-column h3::after {
content: "";
position: absolute;
bottom: 0;
left: 0;
width: 50px;
height: 2px;
background-color: var(--secondary-gold);
}
.footer-column p, .footer-column a {
color: #aaa;
font-size: 0.95rem;
margin-bottom: 0.5rem;
text-decoration: none;
transition: color 0.3s;
}
.footer-column a:hover {
color: white;
}
.copyright {
text-align: center;
padding-top: 2rem;
color: #777;
font-size: 0.9rem;
}
/* Responsive adjustments */
@media (max-width: 992px) {
.footer-content {
grid-template-columns: repeat(2, 1fr);
}
}
@media (max-width: 768px) {
.main-nav {
flex-wrap: wrap;
}
.logo {
order: 1;
}
.search-bar {
order: 3;
width: 100%;
margin: 1rem 0 0;
}
.nav-icons {
order: 2;
}
.cart-header, .cart-item {
grid-template-columns: 1fr;
gap: 1rem;
}
.cart-header {
display: none;
}
.item-details {
margin-bottom: 1rem;
}
.item-price, .quantity-control, .item-subtotal {
display: flex;
justify-content: space-between;
align-items: center;
width: 100%;
padding: 0.5rem 0;
border-bottom: 1px solid #eee;
}
.cart-actions {
flex-direction: column;
gap: 1rem;
}
.action-btn {
width: 100%;
text-align: center;
}
}
</style>
</head>
<body>
<header>
<div class="top-nav">
<p>FREE SHIPPING ON ORDERS OVER $99</p>
</div>
<nav class="main-nav">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="logo">B</a>
<div class="search-bar">
<input type="text" placeholder="Search here...">
</div>
<div class="nav-icons">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><i class="fas fa-user"></i></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><i class="fas fa-heart"></i></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="cart-icon">
<i class="fas fa-shopping-cart"></i>
<span id="cart-count">2</span>
</a>
</div>
</nav>
</header>
<div class="banner">
<h1>SHOPPING CART</h1>
<p>Review your order before proceeding to checkout</p>
</div>
<div class="container">
<div class="cart-container">
<div class="cart-items">
<div class="cart-header">
<div>PRODUCT</div>
<div>PRICE</div>
<div>QUANTITY</div>
<div>TOTAL</div>
</div>
<div class="cart-item" data-id="1" data-price="165.00">
<div class="item-details">
<div class="item-image">
<img src="https://images.unsplash.com/photo-1519947486511-46149fa0a254?auto=format&fit=crop&w=500&h=500&q=80" alt="Modern Chair">
</div>
<div class="item-info">
<h3>Vestibulum suscipit</h3>
<p>Modern Chair Design</p>
</div>
</div>
<div class="item-price">$<span class="item-base-price">165.00</span></div>
<div class="quantity-control">
<button class="quantity-btn minus">-</button>
<input type="number" class="quantity-input" value="1" min="1">
<button class="quantity-btn plus">+</button>
</div>
<div class="item-subtotal">
$<span class="item-total">165.00</span>
<button class="remove-btn"><i class="fas fa-trash"></i></button>
</div>
</div>
<div class="cart-item" data-id="2" data-price="50.00">
<div class="item-details">
<div class="item-image">
<img src="data:image/jpeg;base64,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 " alt="Designer Lamp">
</div>
<div class="item-info">
<h3>Vestibulum dictum magna</h3>
<p>Designer Lamp</p>
</div>
</div>
<div class="item-price">$<span class="item-base-price">50.00</span></div>
<div class="quantity-control">
<button class="quantity-btn minus">-</button>
<input type="number" class="quantity-input" value="1" min="1">
<button class="quantity-btn plus">+</button>
</div>
<div class="item-subtotal">
$<span class="item-total">50.00</span>
<button class="remove-btn"><i class="fas fa-trash"></i></button>
</div>
</div>
<div class="cart-actions">
<button class="action-btn update-btn">UPDATE CART</button>
<button class="action-btn continue-btn">CONTINUE SHOPPING</button>
</div>
</div>
<div class="cart-summary">
<h2>CART SUMMARY</h2>
<div class="summary-row">
<div>SUBTOTAL</div>
<div>$<span id="cart-subtotal">215.00</span></div>
</div>
<div class="summary-row">
<div>SHIPPING</div>
<div id="shipping-cost">Calculated at next step</div>
</div>
<div class="summary-row total-row">
<div>TOTAL</div>
<div>$<span id="cart-total">215.00</span></div>
</div>
<div class="coupon-section">
<h3>COUPON</h3>
<p>Enter your coupon code if you have one.</p>
<div class="coupon-input">
<input type="text" placeholder="Coupon code">
<button>APPLY</button>
</div>
</div>
<div class="shipping-section">
<h3>SHIPPING OPTIONS</h3>
<div class="shipping-options">
<div class="shipping-option">
<input type="radio" id="flat-rate" name="shipping" value="flat-rate" data-cost="7.00">
<label for="flat-rate">Flat Rate: $7.00</label>
</div>
<div class="shipping-option">
<input type="radio" id="free-shipping" name="shipping" value="free-shipping" data-cost="0" checked>
<label for="free-shipping">Free Shipping</label>
</div>
</div>
<p style="font-size: 0.9rem; margin-top: 0.5rem; color: #888;">Calculate Shipping</p>
</div>
<button class="checkout-btn">
PROCEED TO CHECKOUT
<i class="fas fa-arrow-right"></i>
</button>
</div>
</div>
</div>
<footer>
<div class="footer-content">
<div class="footer-column">
<h3>CATEGORIES</h3>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Seating</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Table</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Workstation Furniture</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Dining Room</a>
</div>
<div class="footer-column">
<h3>INFORMATION</h3>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >About Us</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Shipping Policy</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Returns & Refunds</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Privacy Policy</a>
</div>
<div class="footer-column">
<h3>MY ACCOUNT</h3>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Sign In</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >View Cart</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >My Wishlist</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Track My Order</a>
</div>
<div class="footer-column">
<h3>CONTACT</h3>
<p>123 Design Street</p>
<p>Furniture City, FC 10001</p>
<p>Phone: (123) 456-7890</p>
<p>Email: info@furniturestore.com</p>
</div>
</div>
<div class="copyright">
<p>© 2023 Furniture Store. All Rights Reserved.</p>
</div>
</footer>
<script>
document.addEventListener('DOMContentLoaded', function() {
// 初始化購物車狀態(tài)
const cart = {
items: [
{ id: '1', name: 'Vestibulum suscipit', price: 165.00, quantity: 1 },
{ id: '2', name: 'Vestibulum dictum magna', price: 50.00, quantity: 1 }
],
shippingCost: 0,
couponValue: 0
};
// DOM元素緩存
const cartItemsContainer = document.querySelector('.cart-items');
const cartSubtotal = document.getElementById('cart-subtotal');
const cartTotal = document.getElementById('cart-total');
const shippingCostDisplay = document.getElementById('shipping-cost');
const cartCount = document.getElementById('cart-count');
// 初始化UI
updateCartCount();
updateCartTotals();
// 數(shù)量控制事件委托
cartItemsContainer.addEventListener('click', function(e) {
const target = e.target;
// 加號(hào)按鈕
if (target.classList.contains('plus')) {
const input = target.parentElement.querySelector('.quantity-input');
input.value = parseInt(input.value) + 1;
updateItemQuantity(input);
}
// 減號(hào)按鈕
if (target.classList.contains('minus')) {
const input = target.parentElement.querySelector('.quantity-input');
if (parseInt(input.value) > 1) {
input.value = parseInt(input.value) - 1;
updateItemQuantity(input);
}
}
// 移除按鈕
if (target.closest('.remove-btn')) {
const itemElement = target.closest('.cart-item');
const itemId = itemElement.dataset.id;
// 從購物車移除
cart.items = cart.items.filter(item => item.id !== itemId);
updateCartTotals();
// 移除UI元素
itemElement.style.opacity = '0';
setTimeout(() => {
itemElement.remove();
updateCartCount();
// 如果購物車為空，顯示空狀態(tài)
if (cart.items.length === 0) {
cartItemsContainer.innerHTML = `
<div class="empty-cart" style="padding: 2rem; text-align: center;">
<h3>Your cart is empty</h3>
<p style="margin: 1rem 0;">Add items to continue shopping</p>
<button class="continue-btn" style="margin-top: 1rem;">START SHOPPING</button>
</div>
`;
}
}, 300);
}
});
// 輸入框數(shù)量變化監(jiān)聽
cartItemsContainer.addEventListener('input', function(e) {
if (e.target.classList.contains('quantity-input')) {
const input = e.target;
if (input.value < 1) input.value = 1;
updateItemQuantity(input);
}
});
// 更新單個(gè)商品數(shù)量
function updateItemQuantity(input) {
const itemElement = input.closest('.cart-item');
const itemId = itemElement.dataset.id;
const quantity = parseInt(input.value);
// 更新購物車數(shù)據(jù)
const item = cart.items.find(item => item.id === itemId);
if (item) {
item.quantity = quantity;
// 更新小計(jì)顯示
const itemTotalEl = itemElement.querySelector('.item-total');
if (itemTotalEl) {
itemTotalEl.textContent = (item.price * quantity).toFixed(2);
}
updateCartTotals();
}
}
// 更新購物車總價(jià)
function updateCartTotals() {
// 計(jì)算小計(jì)
const subtotal = cart.items.reduce((total, item) => {
return total + (item.price * item.quantity);
}, 0);
// 獲取運(yùn)費(fèi)選項(xiàng)
const shippingOption = document.querySelector('input[name="shipping"]:checked');
const shippingCost = parseFloat(shippingOption.dataset.cost);
// 計(jì)算總價(jià)
const total = subtotal + shippingCost - cart.couponValue;
// 更新UI
cartSubtotal.textContent = subtotal.toFixed(2);
cartTotal.textContent = total.toFixed(2);
shippingCostDisplay.textContent = shippingCost === 0 ?
'Calculated at next step' :
`$${shippingCost.toFixed(2)}`;
// 更新右上角購物車數(shù)量
updateCartCount();
}
// 更新購物車數(shù)量顯示
function updateCartCount() {
const itemCount = cart.items.reduce((count, item) => {
return count + item.quantity;
}, 0);
cartCount.textContent = itemCount;
}
// 運(yùn)費(fèi)選項(xiàng)變更監(jiān)聽
const shippingOptions = document.querySelectorAll('input[name="shipping"]');
shippingOptions.forEach(option => {
option.addEventListener('change', updateCartTotals);
});
// 更新購物車按鈕
const updateBtn = document.querySelector('.update-btn');
if (updateBtn) {
updateBtn.addEventListener('click', function() {
alert('Your cart has been updated!');
});
}
});
</script>
</body>
</html>
總結(jié)
這個(gè)購物車頁面實(shí)現(xiàn)了：
- 美觀的設(shè)計(jì)：精心挑選的配色和布局
- 完善的功能：商品管理、價(jià)格計(jì)算、優(yōu)惠券應(yīng)用
- 優(yōu)秀的用戶體驗(yàn)：響應(yīng)式設(shè)計(jì)、交互動(dòng)畫、空狀態(tài)處理
- 清晰的代碼結(jié)構(gòu)：模塊化CSS和JavaScript
通過這個(gè)案例，我們可以看到現(xiàn)代電商頁面如何將設(shè)計(jì)美學(xué)與實(shí)用功能完美結(jié)合。下次你設(shè)計(jì)購物車時(shí)，不妨參考這些思路，讓你的用戶享受"逛高端家具店"般的購物體驗(yàn)！
到此這篇關(guān)于使用JS編寫一個(gè)購物車界面的文章就介紹到這了,更多相關(guān)JS編寫購物車界面內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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