计算属性的复杂操作

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="gbk">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <!-- 涔︾殑鎬讳环鏍? -->
        <h2>总价为:{{totalPrice}}</h2>
    </div>
</body>

<script src="../js/vue.js"></script>
<script>
    const app = new Vue({
        el: '#app',
        data: {
            books: [{
                id: 110,
                name: 'unix编译原理',
                price: 100
            }, {
                id: 111,
                name: '浠ｇ爜澶у叏',
                price: 99
            }, {
                id: 112,
                name: '娣卞叆鐞嗚В璁＄畻鏈哄師鐞?',
                price: 56
            }, {
                id: 113,
                name: '鐜颁唬鎿嶄綔绯荤粺',
                price: 199
            }, ]
        },
        computed: {
            totalPrice() {
                let result = 0
                for (let i = 0; i < this.books.length; i++) {
                    result += this.books[i].price
                }
                return result

                //es6语法
                for (let i in this.books) {
                    console.log(books[i])
                }

                for (let book of this.books) {
                    console.log(book)
                }
            }
        }
    })
</script>

</html>

来源：CSDN

作者：小小小菜鸡zzzz

链接：https://blog.csdn.net/ojb98K/article/details/104125089

标签

books

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