Knockout Lists

Developer
Ruslan Marin
Size
2,531 Kb
Views
4,046

How do I make an knockout lists?

What is a knockout lists? How do you make a knockout lists? This script and codes were developed by Ruslan Marin on 07 December 2022, Wednesday.

Knockout Lists Previews
IQ Test

Knockout Lists - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Knockout Lists</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <h2>Заказы (<span data-bind="text: seats().length"></span>)</h2>
<table> <thead> <tr> <th>Client name</th> <th>Meal</th> <th>Surcharge</th><th></th> </tr> </thead> <tbody data-bind="foreach: seats"> <tr> <td> <input data-bind="value: clientName" /> </td> <td class="centered"> <select data-bind="options: $root.menu, value: meal, optionsText: 'name'"></select> </td> <td data-bind="text: meal().formattedPrice" class="centered"></td> <td><a href="#" data-bind="click: $root.removeSeat, text: 'Remove'"></a></td> </tr> </tbody>
</table>
<button data-bind="click: addSeat, enable: seats().length < 5">Reserve another seat</button>
<h3 data-bind="visible: total() > 0"> Итого: <span data-bind="text: '$' + total().toFixed(2)"></span>
</h3> <script src='https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.0/knockout-min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Knockout Lists - Script Codes CSS Codes

table { background-color: lightgreen;
}
.centered { text-align: center;
}

Knockout Lists - Script Codes JS Codes

// Конструктор блюда
function Meal(name, price) { var self = this; self.name = name; self.price = price; self.formattedPrice = ko.computed(function(){ return self.price ? "$" + self.price.toFixed(2) : "-"; });
}
// Конструктор заказа
function SeatReservation(name, initialMeal) { var self = this; self.clientName = name; self.meal = ko.observable(initialMeal);
}
// viewmodel с информацией о заказах
function ReservationsViewModel() { var self = this; // Меню self.menu = [ new Meal("Standard (sandwich)", 0 ), new Meal("Premium (lobster)", 34.95 ), new Meal("Ultimate (whole zebra)", 290 ), ]; // Начальные заказы self.seats = ko.observableArray([ new SeatReservation("Lisa", self.menu[0]), new SeatReservation("Bart", self.menu[1]), new SeatReservation("Homer", self.menu[2]) ]); self.addSeat = function() { self.seats.push(new SeatReservation("", self.menu[0])); }; self.removeSeat = function(seat) { self.seats.remove(seat); }; self.total = ko.computed(function(){ var total = 0; for (var i = 0; i < self.seats().length; i++) { total += self.seats()[i].meal().price; } return total; });
}
ko.applyBindings(new ReservationsViewModel());
Knockout Lists - Script Codes
Knockout Lists - Script Codes
Home Page Home
Developer Ruslan Marin
Username marinru
Uploaded December 07, 2022
Rating 3
Size 2,531 Kb
Views 4,046
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