Question

好的，我正在努力创建一个可以在选择框中使用的对象数组......

这是我到目前为止的代码：

var oTranslators = {{"bosniancroatianserbian" : null} , {"dutch" : {"name":"willemjan","id":2}} , {"german" : {"name":"chilly","id":11}} , {"german_informal" : {"name":"Boantio","id":1640}} , {"greek" : null} , {"hungarian" : {"name":"Rudi","id":69}} , {"norwegian" : null} , {"russian" : {"name":"Bugo","id":43}} , {"spanish" : {"name":"Diego Andr\u00e9s","id":413}} };
function lang_switch(val)
{
    if (val == 1)
        document.getElementById("lang").innerHTML = '<select name="lang_name" onchange="trans_switch(this.selectedIndex);"><option value="bosniancroatianserbian">Bosnian/Croatian/Serbian</option><option value="dutch">Dutch</option><option value="german">German</option><option value="german_informal">German Informal</option><option value="greek">Greek</option><option value="hungarian">Hungarian</option><option value="norwegian">Norwegian</option><option value="russian">Russian</option><option value="spanish">Spanish</option></select><label for="translator">Translator: <select name="translator" id="translator"></select></label>';
    else
        document.getElementById("lang").innerHTML = '';
}
function trans_switch(oBName)
{
    document.upload.translator.options.length = 0;
    var oBoard = oTranslators[oBName];
    for (var i = 0; i < oBoard.length; i++) {
        translator.options[translator.options.length] = new Option(oBoard.name, oBoard.id, false, false);
    }
}

HTML：

<form name="upload" enctype="multipart/form-data" action="http://mydomain.com/myaction.php" method="post" autocomplete="off">
    <dl class="settings">
        <dt>
            <strong>Choose a file to upload:</strong>
        </dt>
        <dd>
            <input type="file" name="dp_file" size="38" class="input_file" />
        </dd>
        <dt>
            <select name="down_area" onchange="lang_switch(this.value);">
                <option value="0">Main Download</option>
                <option value="1">Language Packs</option>
            </select>
        </dt>
        <dd>
            <div id="lang"></div>
        </dd>
    </dl>
    <div style="text-align: right;"><input name="upload" type="submit" value="Upload" class="button_submit" /></div>
</form>

基本上，我收到错误声明lang_switch未定义，这很疯狂，因为它就在那里。我的对象数组有问题吗？我没有正确定义吗？这是来自json_encode，但它是一个多维数组，我不得不修复它，所以使用这个PHP代码修复它，在for循环中：

$oTrans = '';
$i = 0;
    foreach($context['languages'] as $lang => $language)
    {
        $i++;
        $oTrans .= '{"' . $lang . '" : ' . json_encode($language['translator'][$lang]) . '} ' . (count($context['languages']) == $i ? '};' : ', ');

我不这样做吗？上面的oTranslators对象数组有什么问题？

Answer 1

您面临的问题是，当您尝试创建javascript对象数组时，您尝试使用对象括号初始化数组：{。

结果会给您一个错误，因为您无法通过以下方式初始化对象：

{{Prop1:val}, {Prop2:val}};

需要如下：

{Prop1:val, Prop2:val};

因此，要修复数组，您需要做的就是将第一个{和最后一个}替换为数组括号[和]：

[{"bosniancroatianserbian" : null} , {"dutch" : {"name":"willemjan","id":2}} , {"german" : {"name":"chilly","id":11}} , {"german_informal" : {"name":"Boantio","id":1640}} , {"greek" : null} , {"hungarian" : {"name":"Rudi","id":69}} , {"norwegian" : null} , {"russian" : {"name":"Bugo","id":43}} , {"spanish" : {"name":"Diego Andr\u00e9s","id":413}} ];

js对象数组导致函数未定义

1 个答案: