js数组sort方法

时间：2025-01-19 15:06:14
<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

    <script>

    var products = [ { name: "Grapefruit", calories: 170, color: "red", sold: 8200 },

                     { name: "Orange", calories: 160, color: "orange", sold: 12101 },

                     { name: "Cola", calories: 210, color: "caramel", sold: 25412 },

                     { name: "Diet Cola", calories: 0, color: "caramel", sold: 43922 },

                     { name: "Lemon", calories: 200, color: "clear", sold: 14983 },

                     { name: "Raspberry", calories: 180, color: "pink", sold: 9427 },

                     { name: "Root Beer", calories: 200, color: "caramel", sold: 9909 },

                     { name: "Water", calories: 0, color: "clear", sold: 62123 }

                   ];

    function compareSold(colaA, colaB){

        if (colaA.sold > colaB.sold){

            return 1;

        } else if (colaA.sold === colaB.sold){

            return 0;

        } else {

            return -1

        }

    }

    products.sort(compareSold);

    console.log(products);

    //传递给sort比较函数需要根据比较结果返回

    //    如果第一项>第二项，返回大于0

    //    如果第一项=第二项， 返回0

    //    反之，返回小于0

    </script>

</head>

<body>

</body>

</html>

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