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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Aplikasi Hitung Diskon</title>
<link rel="shortcut icon" href="./assets/icon.png" type="image/x-icon">
<link rel="stylesheet" href="./assets/style.css">
<!-- libarary untuk inputan agar bisa format rupiah -->
<script src="./assets/autoNumeric.js"></script>
<!-- validation style -->
<style>
.error-message {
color: red;
font-size: 0.9em;
margin-top: 5px;
}
</style>
<script src="./assets/jquery-3.7.1.min.js"></script>
<script src="./assets/parsley.min.js"></script>
</head>
<body>
<section>
<div class="wrapper">
<h1>Aplikasi Diskon</h1>
<div class="container">
<div class="form">
<h2 class="">Minimarket jarwo</h2>
<form id="jarwoform">
<div class="inputBox">
<input type="text" id="harga_barang" placeholder="Rp. 1xx xxx"
data-parsley-trigger="focusin"
data-parsley-required
data-parsley-min-custom
data-parsley-min-custom-message="Harga Barang minimal 1 Rupiah"
data-parsley-required-message="harga barang harus ada!"
data-parsley-type-message="masukan harga yang benar Rp. 100 xxx">
</div>
<div class="inputBox">
<input type="text" id="diskon"
placeholder="Diskon 50%"
data-parsley-trigger="focusin"
data-parsley-max="100"
data-parsley-min="1"
data-parsley-required
data-parsley-required-message="diskon harus diisi"
data-parsley-type-message="masukan diskon yang benar!"
data-parsley-min-message="diskon minimal 1%"
data-parsley-max-message="diskon maksimal 100%">
</div>
<div class="inputBox">
<button id="button" type="submit">Hitung</button>
</div>
<p class="forget harga-barang">Harga Barang : - </p>
<p class="forget diskon-barang">Diskon : - </p>
<p class="forget potongan-harga">Potongan : -</p>
<p class="forget">Total Harga : <span id="total_harga">_______</span></p>
</form>
</div>
</div>
</div>
</section>
<script>
window.parsley.addValidator("minCustom", {
/**
* @param {string} text
*/
validateString: (text) => {
// debugging
// console.log(text)
if(text.startsWith("-Rp")) {
return false
} else if(text == "Rp 0"){
return false
}
return true
},
})
$(document).ready(() => {
//animation
$("h1").addClass("focus-in-expand")
$(".container").addClass("flip-in-diag-2-br ")
// mengambil element yang diperlukan
const form = $('#jarwoform')
const hargaBarang = new AutoNumeric("#harga_barang", {
digitGroupSeparator: '.',
decimalCharacter: ',',
decimalPlaces: 0,
currencySymbol: 'Rp ',
currencySymbolPlacement: 'p'
})
// untuk membuat validasi error
let validation = form.parsley({
errorsContainer: function (field) {
return field.$element.closest('.inputBox');
},
errorsWrapper: '<div class="error-message"></div>',
errorTemplate: '<span></span>',
});
// ketika tombol hitung dipencet
form.on("submit", (e) => {
e.preventDefault()
let harga_barang = parseInt(hargaBarang.getNumber());
let diskon = parseFloat($("#diskon").val());
// jika validasi benar maka
if (validation.isValid()) {
// menghitung harga yang harus dibayar
let potongan = harga_barang * (diskon / 100)
let total = harga_barang - potongan;
console.log(potongan)
// ditampilkan
$(".harga-barang").text(`Harga Barang : ${formatCurrency(harga_barang)}`)
$(".diskon-barang").text(`Diskon : ${diskon}%`)
$(".potongan-harga").text(`Potongan : ${formatCurrency(potongan)}`)
let total_harga = $("#total_harga").text(formatCurrency(total));
}
});
});
function formatCurrency(value) {
return new Intl.NumberFormat("id-ID", { style: "currency", currency: "IDR", minimumFractionDigits: 0, maximumFractionDigit: 0 }).format(parseInt(value))
}
</script>
</body>
</html>