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Jquery 总计_Jquery_Arrays_Codeigniter_Function_Variables - Fatal编程技术网

Jquery 总计

Jquery 总计,jquery,arrays,codeigniter,function,variables,Jquery,Arrays,Codeigniter,Function,Variables,好吧,挑战相对较小,但它是一只在我头上嗡嗡作响的苍蝇。 在jQuery中查看$(“$”+table\u-number).text(“$”+grand\u-total[table\u-number].toFixed(2)) 我尝试做的是grand_total[表号]+=sub_total;但我一直在找NaN CSS .guest_table { float:left; position: relative; margin-left: 30px; wi

好吧,挑战相对较小,但它是一只在我头上嗡嗡作响的苍蝇。 在jQuery中查看$(“$”+table\u-number).text(“$”+grand\u-total[table\u-number].toFixed(2))

我尝试做的是grand_total[表号]+=sub_total;但我一直在找NaN

CSS

    .guest_table
    {
    float:left;
    position: relative;
    margin-left: 30px;
    width: 280px;
    }

    h1
    {
    text-align: center;
    }

    table
    {
    margin-left: auto;
    margin-right: auto;
    width: 425px;
    }

    table, tr
    {
    border: 5px solid black;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    border-radius: 10px; /* future proofing */
    -khtml-border-radius: 10px; /* for old Konqueror browsers */
    }

     tr
    {
    height: 65px;
    }

    .submit
    {
    text-align: center;
    }

    .input
    {
    border: none;
    background: #fff url(../images/rounded-corner.png) no-repeat left top;
    background-size:185px 37px;
    width: 160px;
    padding: 10px;
    }

    .input:focus
    {
    background-color:  #ffff33 ;
    }

    #submit_form
    {
    border: 50px;
    padding: 10px;
    margin-left: auto;
    margin-right: auto;
    }

    .error
    {
    text-align: center;
    color: red;
    font-size: 20px;
    margin-bottom: 20px;
    background-color: yellow;
    width: 25%;
    margin-left: auto;
    margin-right: auto;
    }

    .list_total
    {
    display:  inline-block;
    padding-left: 5px;
    }

    #option_list
    {
    width: 25%;
    }

    #already_paid
    {
    text-align: center;
    }

   input[type=submit]:hover,input[type=reset]:hover
    {
    background-color: #8F5B00;
    color: white;
    }

    button, input[type=submit]
    {
    margin-left: 10px;
    }

    button:hover
    {
    background-color: #8F5B00;
    color: white;
    }
代码点火器视图

<?php echo validation_errors(); ?>

<?php
$total_guests = count($results);
$attributes = array(
    'id' => 'submit_form'
);

echo form_open('main/form_validation/options');
?>

<div id="center">
    <?php
    foreach ($results as $result) {
        ?>
        <table class="guest_table" id="guest_<?php echo $result->id; ?>">
            <th>
    <?php echo $result->full_name; ?>    
            </th>
            <tr id="option_list">
                <td>

                    <?php
                    $b = $price2 > 0 ? " $" . $price2 : "N/A";

                    $day = array(
                        array(
                            'name' => 'friday_performance_' . $result->id,
                            'id' => 'friday_performance' . $result->id,
                            'value' => 'friday_performance'
                        ),
                        array(
                            'name' => 'friday_banquet_' . $result->id,
                            'id' => 'friday_banquet' . $result->id,
                            'value' => 'friday_banquet'
                        ),
                        array(
                            'name' => 'saturday_' . $result->id,
                            'id' => 'saturday' . $result->id,
                            'value' => 'saturday'
                        ),
                    );


                    $meal_pref = array(
                        array(
                            'name' => 'meal_' . $result->id,
                            'id' => 'chicken',
                            'value' => 'chicken'
                        ),
                        array(
                            'name' => 'meal_' . $result->id,
                            'id' => 'fish',
                            'value' => 'fish'
                        ),
                        array(
                            'name' => 'meal_' . $result->id,
                            'id' => 'vegetarian',
                            'value' => 'vegetarian'
                        ),
                    );


                    echo form_checkbox($day[0]);
                    ?>&nbsp;&nbsp;
                    Friday Performance <?php echo " $" . $price1; ?><br>

                    <?php echo form_checkbox($day[1]);
                    ?>&nbsp;&nbsp;Friday Banquet <?php echo $b; ?><br>
                    <div class="meal_choice"  id='meal_choice<?php echo $result->id; ?    >'>
                        <?php
                        echo form_radio($meal_pref[0]);
                        ?>&nbsp;&nbsp;Chicken <br>
                        <?php echo form_radio($meal_pref[1]);
                        ?>&nbsp;&nbsp;Fish <br>
                        <?php echo form_radio($meal_pref[2]);
                        ?>&nbsp;&nbsp;Vegetarian<br>

                    </div>
    <?php echo form_checkbox($day[2]); ?>&nbsp;&nbsp;Saturday Workshop w/lunch <?php echo " $" . $price3; ?><br>
                    <br><br>
                </td>
            </tr>
            <tr>
                <td>
                    Total:<div class="list_total" id="list_total<?php echo $result->id; ?>"></div>
                </td>

        </table>

<?php } ?>
</div>
<div class="submit">
    <?php
    echo ("<input type='hidden' name='email' value=" . $this->session->userdata('email') . ">");

    $data = array(
        'name' => 'submit',
        'id' => 'submit',
        'value' => 'Complete Form',
        'type' => 'submit'
    );

    echo form_submit($data);
    echo form_button('exit', 'Exit');
    ?>

</div>
<?php
echo form_close();
?>


您可以很容易地调试它

在浏览器中打开控制台(F12)

键入以下内容:

table_number

sub_total

grand_total[table_number]
这会告诉你你需要什么——一不是数字。如有必要,在控制台中编辑您的问题,提及上述变量的值,我们将进一步提供帮助


在浏览器中舒适地使用控制台将有助于开发客户端web应用。

您已经初始化了
grand\u total
变量,但您也应该在开始添加任何内容之前初始化
grand\u total[表号]
即索引值

考虑修改以下行:

$(':checkbox').change(function(){

    switch($(this).attr('id'))
    {
为此:

$(':checkbox').change(function(){

    if (typeof (grand_total[table_number]) === "undefined") {
        grand_total[table_number] = 0;
    }

    switch($(this).attr('id'))
    {

您需要确保与
+
一起使用的所有变量都应该是相同的类型。如果您试图添加整数,请确保使用
parseInt
方法,如果您使用的是string,则使用
toFixed
。谢谢…我与firebug进行了双重检查…显示表号是一个数字(数字周围没有引号)以及子总数。抱歉,上一条评论超时…无论如何。。。谢谢…我仔细检查了firebug…显示表号是一个数字(数字周围没有引号)以及子总数。奇怪的是,当我将鼠标移到grand_total上时,我得到[0,NaN]甚至认为grand_total[表号]+=sub_total;
$(':checkbox').change(function(){

    if (typeof (grand_total[table_number]) === "undefined") {
        grand_total[table_number] = 0;
    }

    switch($(this).attr('id'))
    {