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index.html
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<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="styles.css">
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body>
<div class="container">
<div class="header"></div>
<div class="body">
<img alt="pizza-hut-logo" src="https://drive.google.com/uc?export=view&id=1KLglF6g9YHf_IeRHA7mwO_3yccadkaYX">
<!-- FIRST ROW -->
<div class="title">Your order from <span style="font-weight: bold;">Pizza Hut</span></div>
<!-- SECOND ROW -->
<!-- BEVERAGES ARRAY -->
<div class="beverages">
<!-- INDIVIDUAL BEVERAGE -->
<div data-key="1" class="beverage">
<!-- BEVERAGE NAME -->
<div id="beverage-name" data-key="1">British Pizza | Medium</div>
<!-- BEVERAGE QUANTITY ORDER -->
<div id="quantity">
<button id="less-q" data-key="1">−</button>
<input id="num-q" name="num-q" type="number" data-key="1" value="1" disabled>
<button id="add-q" data-key="1">+</button>
</div>
<!-- BEVERAGE PRICE -->
<span id="beverage-price" data-key="1"></span>
<!-- BEVERAGE DELETE BUTTON -->
<span id="beverage-delete" data-key="1">×</span>
</div>
<!-- INDIVIDUAL BEVERAGE -->
<div data-key="2" class="beverage">
<!-- BEVERAGE NAME -->
<div id="beverage-name" data-key="2">Pizza Diavola | Medium</div>
<!-- BEVERAGE QUANTITY ORDER -->
<div id="quantity">
<button id="less-q" data-key="2">−</button>
<input id="num-q" name="num-q" type="number" data-key="2" value="1" disabled>
<button id="add-q" data-key="2">+</button>
</div>
<!-- BEVERAGE PRICE -->
<span id="beverage-price" data-key="2"></span>
<!-- BEVERAGE DELETE BUTTON -->
<span id="beverage-delete" data-key="2">×</span>
</div>
</div>
<!-- THIRD ROW -->
<button id="add-beverage"><span class="icecream">🍨</span> Add a beverage</button>
<!-- FOURTH ROW -->
<div id="order">
<span class="order-rc-11">Subtotal</span>
<span id="subtotal-price" class="order-rc-12">$15,98</span>
<span class="order-rc-21">Shipping</span>
<span id="shipping-price" class="order-rc-22">$2</span>
<span class="order-rc-31">Total (TVA incl.)</span>
<span id="total-price" class="order-rc-32">$17,98</span>
</div>
<!-- FIFTH ROW -->
<button id="checkout">Checkout</button>
</div>
</div>
<script>
const beverages = [
{
"id": 1,
"name": "British Pizza",
"sizes": ["Small", "Medium", "Large"],
"price": 7.99
},
{
"id": 2,
"name": "Pizza Diavola",
"sizes": ["Small", "Medium", "Large"],
"price": 8.99
},
{
"id": 3,
"name": "Margarita Pizza",
"sizes": ["Small", "Medium", "Large", "Extra Large"],
"price": 10.99
},
{
"id": 4,
"name": "Special Big Pizza",
"sizes": ["Small", "Medium", "Large", "Extra Large"],
"price": 12.99
}
]
updateTotal = () => {
const prices = document.querySelectorAll('#beverage-price')
const subtotal = document.querySelector('#subtotal-price')
const shipping = document.querySelector('#shipping-price')
const total = document.querySelector('#total-price')
let sum = 0
prices.forEach(price =>
sum += parseFloat(price.firstChild.data.substring(1))
)
let roundedNumber = Number(sum.toFixed(2))
if (roundedNumber !== null) {
subtotal.innerHTML = "$"+`${roundedNumber}`
}
if (parseFloat(subtotal.innerHTML.substring(1)) === 0) {
total.innerHTML = 'Select 1 or more pizza'
} else {
let s = parseFloat(shipping.firstChild.data.substring(1))
let t = Number((roundedNumber+s).toFixed(2))
total.innerHTML = "$"+`${t}`
}
}
updatePrice = (e = 1, key) => {
const p = document.querySelector(`#beverage-price[data-key="${key}"]`)
let pizzaPrice = e * parseFloat(beverages[key - 1].price)
let roundedNumber = Number(pizzaPrice.toFixed(2))
if (roundedNumber !== null) {
if (p !== null) {
p.innerHTML = "$"+`${roundedNumber}`
} else if (p.innerHTML === null) {
throw new Error("Not defined")
}
}
updateTotal()
}
addEventHandler = (e) => {
let pizzaKey = e.srcElement.dataset.key
const q = document.querySelector(`#num-q[data-key="${pizzaKey}"]`)
if (q.value >= 999) {
return
}
q.value++
updatePrice(q.value, pizzaKey)
}
removeEventHandler = (e) => {
let pizzaKey = e.srcElement.dataset.key
const q = document.querySelector(`#num-q[data-key="${pizzaKey}"]`)
if (q.value <= 0) {
return
}
q.value--
updatePrice(q.value, pizzaKey)
}
// Remove & Add Pizza functionality
const removePizzas = document.querySelectorAll('#less-q')
const addPizzas = document.querySelectorAll('#add-q')
addPizzas.forEach(pizza => pizza.addEventListener('click', addEventHandler))
removePizzas.forEach(pizza => pizza.addEventListener('click', removeEventHandler))
// Render initial pizza totals
beverages.forEach(beverage => {
const price = document.querySelector(`#beverage-price[data-key="${beverage.id}"]`)
if (price !== null) {
price.innerHTML = "$"+`${beverage.price}`
} else if (price === null) {
throw new Error("Catched error. Chill")
}
})
</script>
</body>
</html>
<!--
Minus sign (-):
HTML entity code: −
Unicode code point: U+2212
Plus sign (+):
HTML entity code: +
Unicode code point: U+002B
<p>Minus sign: − or −</p>
<p>Plus sign: + or +</p>
-->