Question

JavaScript的新手（通常在Excel函数之外进行编码），希望有人可以帮助我指出正确的方向。我已经在网上搜索过，但没有找到明确的答案。

我有两个数组-一个带有星期几，另一个带有人们的名字和姓氏。我从带有人名的数组中选择一个随机索引号，并尝试将名字和姓氏分配给一天，然后将所有三个值放入一个新数组中。然后，我将这个最终数组打印到HTML表中。

包含日期的数组是一维的，只是从星期日到星期六。据我所知，包含人们姓名的数组实际上是二维的，即名字和姓氏。

我通过对第三个数组进行硬编码来实现此目的，但是我想动态地创建数组。我似乎无法使array.push（）方法正常工作，希望有人愿意提供帮助。

值得注意的是-我正在通过创建另一个数组来选择随机索引号，该数组可以选择介于0和people数组长度之间的七个随机数。在这种情况下，push方法可以正常工作。

我尝试使用array.push（）方法，但似乎无法按照我的预期方式工作。它要么返回一个空值，要么看起来像胡言乱语，尽管我认为这是来自人员数组的随机字母。

//This is my working code.  The script tag is after the body elements because I need to create some of the body elements before I run the script.

 <body>        
    <table id="Week1Table" class="center">
        <tr>
            <th class="Week1">Week 1</th>
            <th class="Week1">First Name</th>
            <th class="Week1">Last Name</th>
        </tr>
    </table>

    <table id="Week2Table" class="center">
        <tr>
            <th class="Week2">Week 2</th>
            <th class="Week2">First Name</th>
            <th class="Week2">Last Name</th>
        </tr>
    </table>

    <script>            
        var people = [
            ["Andre", "the Giant"],
            ["Randy", "Savage"],
            ["Steve", "Austin"],
            ["The", "Rock"],
            ["Man", "Kind"],
            ["Steel", "Cage"],
            ["I", "Quit"]
        ];
        var week1schedule = [
            "Sunday",
            "Monday",
            "Tuesday",
            "Wednesday",
            "Thursday",
            "Friday",
            "Saturday"
        ];

        var week2schedule = week1schedule;

        var peoplePicker = []
        while(peoplePicker.length < week1schedule.length*2){
            var r = Math.floor(Math.random()*people.length);
            if(peoplePicker.indexOf(r) === -1) peoplePicker.push(r);
        };


//This is the final array, and the one that I would like to create dynamically rather than statically.

        var peopleRandomizerTable = [];
        peopleRandomizerTable[0] = week1schedule[0];
        peopleRandomizerTable[1] = people[peoplePicker[0]][0];
        peopleRandomizerTable[2] = people[peoplePicker[0]][1];
        peopleRandomizerTable[3] = week1schedule[1];
        peopleRandomizerTable[4] = people[peoplePicker[1]][0];
        peopleRandomizerTable[5] = people[peoplePicker[1]][1];
        peopleRandomizerTable[6] = week1schedule[2];
        peopleRandomizerTable[7] = people[peoplePicker[2]][0];
        peopleRandomizerTable[8] = people[peoplePicker[2]][1];
        peopleRandomizerTable[9] = week1schedule[3];
        peopleRandomizerTable[10] = people[peoplePicker[3]][0];
        peopleRandomizerTable[11] = people[peoplePicker[3]][1];
        peopleRandomizerTable[12] = week1schedule[4];
        peopleRandomizerTable[13] = people[peoplePicker[4]][0];
        peopleRandomizerTable[14] = people[peoplePicker[4]][1];
        peopleRandomizerTable[15] = week1schedule[5];
        peopleRandomizerTable[16] = people[peoplePicker[5]][0];
        peopleRandomizerTable[17] = people[peoplePicker[5]][1];
        peopleRandomizerTable[18] = week1schedule[6];
        peopleRandomizerTable[19] = people[peoplePicker[6]][0];
        peopleRandomizerTable[20] = people[peoplePicker[6]][1];
        peopleRandomizerTable[21] = week2schedule[0];
        peopleRandomizerTable[22] = people[peoplePicker[7]][0];
        peopleRandomizerTable[23] = people[peoplePicker[7]][1];
        peopleRandomizerTable[24] = week2schedule[1];
        peopleRandomizerTable[25] = people[peoplePicker[8]][0];
        peopleRandomizerTable[26] = people[peoplePicker[8]][1];
        peopleRandomizerTable[27] = week2schedule[2];
        peopleRandomizerTable[28] = people[peoplePicker[9]][0];
        peopleRandomizerTable[29] = people[peoplePicker[9]][1];
        peopleRandomizerTable[30] = week2schedule[3];
        peopleRandomizerTable[31] = people[peoplePicker[10]][0];
        peopleRandomizerTable[32] = people[peoplePicker[10]][1];
        peopleRandomizerTable[33] = week2schedule[4];
        peopleRandomizerTable[34] = people[peoplePicker[11]][0];
        peopleRandomizerTable[35] = people[peoplePicker[11]][1];
        peopleRandomizerTable[36] = week2schedule[5];
        peopleRandomizerTable[37] = people[peoplePicker[12]][0];
        peopleRandomizerTable[38] = people[peoplePicker[12]][1];
        peopleRandomizerTable[39] = week2schedule[6];
        peopleRandomizerTable[40] = people[peoplePicker[13]][0];
        peopleRandomizerTable[41] = people[peoplePicker[13]][1];  

        var table1 = document.getElementById("Week1Table");
        var table2 = document.getElementById("Week2Table");
        var peopleRandomizerCount = 0;


//This populates the two tables.  Two weeks; one table for each week.

        for(var rowCount = 0; rowCount < 7; rowCount++)
        {
        // create a new row
        var newRow = table1.insertRow(table1.length);
        for(var columnCount = 0; columnCount < 3; columnCount++)
            {
                // create a new cell
                var cell = newRow.insertCell(columnCount);

                // add value to the cell
                cell.innerHTML = peopleRandomizerTable[peopleRandomizerCount];
                cell.className = "people";
                peopleRandomizerCount++;
            }
        }

        for(var rowCount = 0; rowCount < 7; rowCount++)
        {
        // create a new row
        var newRow = table2.insertRow(table1.length);
        for(var columnCount = 0; columnCount < 3; columnCount++)
            {
                // create a new cell
                var cell = newRow.insertCell(columnCount);

                // add value to the cell
                cell.innerHTML = peopleRandomizerTable[peopleRandomizerCount];
                cell.className = "people";
                peopleRandomizerCount++;
            }
        }
    </script>
</body>

Answer 1

您的名字和姓氏都不需要使用二维数组，

您可以简单地使用包含名字和姓氏的对象的一维数组，如下所示：

1 eggs  23
2 bread 22
3 juice 20

现在我想您可能知道如何组合2个一维数组。如果没有，请告诉我

如何将数组元素组合成一个新数组？

1 个答案: