pizza.js/example_07.html at master · Codher/pizza.js · GitHub

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<html>
    <head>
        <title>Vue.js Example 07</title>
        <link rel="stylesheet" type="text/css" href="bootstrap-3.3.7-dist/css/bootstrap.min.css">
        <link rel="stylesheet" type="text/css" href="styles/site.css">
        <script src="lib/vue@2.2.1.js"></script>

    </head>

    <body>
        <div id="app">
            <div class="panel-group">
                <div class="panel panel-default card">
                    <div class="panel-heading">
                        <h2>We Serve:</h2>
                    </div>
                    <div class="panel-body">
                        <ul class="list-group">
                            <pizza-item v-for="pizza in list" v-bind:type="pizza.type"></pizza-item>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
        <script>
            /**
                Let's take things a step forward.

                We have a list of pizzas: margherita, hawaii, potato

                Each pizza will be displayed by our "pizza-item" component.

                To do that, our "pizza-item" has a property: "type".

                To bind the type of pizza to our "pizza-item" type property we use:
                    v-bind:type="pizza.type"

                If you don't write v-bind then Vue will treat "pizza.type" as plain text and not
                figure out that the type should be defered from our list.

                ¯\_(ツ)_/¯

                Each "pizza-item" component also has a button for adding more pizza !!

                When we click the button it will increase the amount by 1.

            */
            Vue.component('pizza-item', {
                props: ['type'],
                template: `<li class="list-group-item">
                                <input type="button" class="btn btn-default" v-on:click="add" value="+">{{ type }}</input>
                                <span class="badge">{{amount}}</span>
                            </li>`,
                data: function () {
                    return {
                        amount: 0
                    }
                },
                methods: {
                    add: function () {
                        this.amount += 1;
                    }
                }
            });

            new Vue({
                el: '#app',
                data: function () {
                    return {
                        list: [
                            { type: 'margherita' },
                            { type: 'hawaii' },
                            { type: 'potato'}
                        ]
                    }
                }
            });
        </script>
    </body>
</html>
<!--
    Example 07:
        - Create a list.
        - Add a decrease button
        - When clicking the amount decrease by 1
        - If the amount is 0, you can not decrease it anymore
->