如果所有值都填写在文本框中，我的下面的代码会跳过按钮点击的html表格的最后一行但是现在我有一种情况我只想跳过第一行，因为在我的情况下会有标题在第一行并打印所有数据，预计第一行。
With Heading demo doent work as there is text on first row
Demo With out heading skips last row working HTML
<table border="1" id="Positions_names">
<tbody>
<tr>
<td align="center">text heading
</td>
<td>
text heading
</td>
<td style="display:none;">
text heading
</td>
<td style="display:none;">
text heading
</td>
<td style="display:none;">
text heading
</td>
<td style="display:none;">
text heading
</td>
<td style="display:none;">
text heading
</td>
</tr>
<tr>
<td align="center">b
<input type="hidden" value="b">
</td>
<td>
<input onchange="election_title_onchange();" class="designatiom_placeholder" type="text" placeholder="Enter a Designation">
</td>
<td style="display:none;">
<input type="hidden" class="election_id" value="767F1G">
</td>
<td style="display:none;">
<input type="hidden" class="election_title" value="21">
</td>
<td style="display:none;">
<input type="hidden" class="election_date" value="2015-09-21">
</td>
<td style="display:none;">
<input type="hidden" class="election_start_time" value="02:03">
</td>
<td style="display:none;">
<input type="hidden" class="election_end_time" value="15:04">
</td>
</tr>
<tr>
<td align="center">c
<input type="hidden" value="c">
</td>
<td>
<input onchange="election_title_onchange();" class="designatiom_placeholder" type="text" placeholder="Enter a Designation">
</td>
<td style="display:none;">
<input type="hidden" class="election_id" value="767F1G">
</td>
<td style="display:none;">
<input type="hidden" class="election_title" value="21">
</td>
<td style="display:none;">
<input type="hidden" class="election_date" value="2015-09-21">
</td>
<td style="display:none;">
<input type="hidden" class="election_start_time" value="02:03">
</td>
<td style="display:none;">
<input type="hidden" class="election_end_time" value="15:04">
</td>
</tr>
<tr>
<td align="center">d
<input type="hidden" value="d">
</td>
<td>
<input onchange="election_title_onchange();" class="designatiom_placeholder" type="text" placeholder="Enter a Designation">
</td>
<td style="display:none;">
<input type="hidden" class="election_id" value="767F1G">
</td>
<td style="display:none;">
<input type="hidden" class="election_title" value="21">
</td>
<td style="display:none;">
<input type="hidden" class="election_date" value="2015-09-21">
</td>
<td style="display:none;">
<input type="hidden" class="election_start_time" value="02:03">
</td>
<td style="display:none;">
<input type="hidden" class="election_end_time" value="15:04">
</td>
</tr>
</tbody>
</table>
<input type="submit" onclick="save_election_req_details();" id="submit_positions">
JS：
$('#submit_positions').click(function () {
var x = document.getElementById("Positions_names").rows.length;
if(x=="1")
{
alert("Select Some Details to Contunue");
}
else {
var html = '';
var arr = [];
var valid = true;
$('#Positions_names tr').each(function (index, me) {
if (index < $('#Positions_names tr').length - 1 && valid) {
var inputs = $('input', me);
inputs.each(function (index, me) {
if ($(me).val().length == 0) valid = false;
});
var selects = $('select', me);
selects.each(function (index, me) {
if ($(me)[0].selectedIndex == 0) valid = false;
});
if (valid){
arr.push('("' + inputs[0].value + '","' + inputs[1].value +'")');
}
}
});
if (valid) {
html = 'INSERT INTO demo (xxxx, xxxxx, xxxx,xxxx,xxxx) VALUES ' + arr.join(',') + ';';
alert(html);
} else
{
alert("Fill the Price or Select the Created Product");
}
}
});
答案 0 :(得分：2)
也许是这样的？ FIDDLE
我刚在if子句中添加了另一个条件。
在：
if (index < $('#Positions_names tr').length - 1 && valid) {
后：
if (index < $('#Positions_names tr').length && valid && index >= 1) {
可替换地：
if (index >= 1 && valid) {
答案 1 :(得分：1)
试试这个
$('#Positions_names tr:gt(0)').each(function (index, me) {
答案 2 :(得分：1)
取决于您想要做的事情。这是一种更简洁的JavaScript方式。它首先使用伪元素。您还可以使用<thead>标记来执行标题。这消除了跳过第一行的需要。
$('form').submit(function(e) {
//prevents the form from submitting
e.preventDefault();
//pushes the strings into arrays to be joined by commas later
var chunck = [];
//foreach tr in tbody
$('tbody tr')
//do not select first or last child tr
.not(':last-child,:first-child')
//find the inputs an foreach
.find('input').each(function() {
//get the name and the value
var name = $(this).attr("name");
var value = $(this).val();
//if the value is not empty then push it to the string
if (value.length > 0) {
chunck.push("('" + name + "','" + value + "')");
}
})
//chunck.join() puts commas between array elements
var string = 'INSERT INTO (name,value) VALUES ' + chunck.join();
alert(string);
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<table border="1">
<thead>
<tr>
<th>Head</th>
<th>Head</th>
</tr>
</thead>
<tbody>
<tr>
<td>a</td>
<td>
<input name='a' />
</td>
</tr>
<tr>
<td>b</td>
<td>
<input name='b' />
</td>
</tr>
<tr>
<td>c</td>
<td>
<input name='c' />
</td>
</tr>
<tr>
<td>d</td>
<td>
<input name='d' />
</td>
</tr>
</tbody>
</table>
<input type="submit" />
</form>
答案 3 :(得分：0)
$('tbody tr').each(function(){
$(this).find('td:eq(5)').text('$145');
});
在上面的示例中，您可以通过将标题行放入thead来跳过标题行。我已经给出了循环遍历 Table Body
一些参考，可以帮助你。