Question

如果我想复制它的每一行并使它成为一个新的二维数组，我该如何处理二维数组呢？

这是二维数组的格式：

<!DOCTYPE html>

<head><meta charset="UTF-8">
    <title>I am a test page</title>

    <!--bootstrap 3.3.6 and jquery 2.23-->
    <script src="./js/jquery-2.2.3.min.js"></script>

    <script src="./js/bootstrap.min.js"></script>
    <link href="./css/bootstrap.min.css" rel="stylesheet"/>

    <style>
        .main
        {
        background-color: rgba(98,159,210, 0.3);
        border-radius: 1px;
        font-size: 14px;
        color: black;
        width: 400px;
        margin-left: auto;
        margin-right: auto;
        height: 50px;
        padding:3px;
        cursor: pointer;        
        }


        .button1
        {

        }

        .button2
        {

        }


        .light1
        {
            height: 100px;
            width: 100px;
            background-color: yellow;
        }

        .light2
        {
            height: 100px;
            width: 100px;
            background-color: red;   

        }
    </style>

</head>


<body>
<div class="container">
    <br><br>
    <div class="main">
         <button class="button1">button1</button>
         <button class="button2">button2</button>
    </div>
    <br>
    <br><br><br><br>
    <div class="light1"></div>
    <div class="light2"></div>

</div>
</body>

<script>
    $(document).on("click", ".button1, .main", function()
                   {
                    $(".light1").toggle();

                   });

    $(document).on("click", ".button2", function()
                   {

                    $(".light2").toggle();

                   });

</script>

看起来应该是这样的：

{
  "localTrain": "T7",
  "TC": "2",
  "TimeSheet": [
    ["01", "London", "BXP", "T7", "1632", "1640"],
    ["02", "Shanghai", "QWE", "T7", "1200", "1240"],
    ["03", "LosAngeles", "DFG", "T7", "1300", "1340"],
    ["04", "NewDelhi", "VGH", "T7", "1400", "1440"],
    ["05", "Sydney", "SAW", "T7", "1500", "1540"],
    ["06", "Tokyo", "SAT", "T7", "1600", "1640"],
    ["07", "Seoul", "BBT", "T7", "1700", "1740"],
    ["08", "CapeTown", "OOP", "T7", "1800", "1840"],
  ]
}

Answer 1

只需创建一个与旧对象类似的新对象，除了遍历每个TimeSheet数组元素，然后将其推送到新对象的TimeSheet数组，而不是一次，而是两次。

const oldObj = {
  "localTrain": "T7",
  "TC": "2",
  "TimeSheet": [
    ["01", "London", "BXP", "T7", "1632", "1640"],
    ["02", "Shanghai", "QWE", "T7", "1200", "1240"],
    ["03", "LosAngeles", "DFG", "T7", "1300", "1340"],
    ["04", "NewDelhi", "VGH", "T7", "1400", "1440"],
    ["05", "Sydney", "SAW", "T7", "1500", "1540"],
    ["06", "Tokyo", "SAT", "T7", "1600", "1640"],
    ["07", "Seoul", "BBT", "T7", "1700", "1740"],
    ["08", "CapeTown", "OOP", "T7", "1800", "1840"],
  ]
};

let newTimeSheet = [];
oldObj.TimeSheet.forEach(arrForOneCity => {
  newTimeSheet.push(arrForOneCity);
  newTimeSheet.push(arrForOneCity);
});

let newObj = {
  localTrain: oldObj.localTrain,
  TC: oldObj.TC,
  TimeSheet: newTimeSheet
};
console.log(JSON.stringify(newObj));

复制二维数组

1 个答案: