我的jQuery脚本有问题。我正在尝试为每个tr创建一个简单的计数循环。我有一个像下面这样的表,我想选择第二个td,将它乘以2并添加到第三个td并在第四个td中显示结果。
https://codepen.io/adeowsky/pen/YEgVKG
我正在尝试使用下面的每个循环 - >
<script>
(function($) {
$('.sp-league-table tbody tr').each( function() {
var pct = this.find('.data-pct').text();
console.log(pct);
//var pct = $('').hasClass('data-pct').text();
//console.log(pct);
var winy = $('.data-w').text();
var losy = $('.data-l').text();
/*var pkt = (winy*2) + (losy*2);
$('.data-pct').text(pkt);*/
});
})( jQuery );
</script>
但它对我不起作用,原因在哪里?
答案 0 :(得分:1)
您正在选择所有具有该类的元素,而不是当前行中的元素。
var tr = $(this);
var pCell = tr.find(".data-pct")
var wCell = tr.find('.data-w')
var lCell = tr.find('.data-l')
答案 1 :(得分:0)
有几个问题
$(function(){
$('.sp-league-table tbody tr').each( function() {
var pct = $('.data-pct',this).text();
var winy = parseInt($('.data-w',this).text(),10);
var losy =parseInt($('.data-l',this).text(),10);
var pkt = (winy*2) + (losy*2);
$('.data-pct',this).text(pkt);
});
})
更新:https://codepen.io/anon/pen/NwJjaO
实例:
$(function(){
$('.sp-league-table tbody tr').each( function() {
var pct = $('.data-pct',this).text();
var winy = parseInt($('.data-w',this).text(),10);
var losy =parseInt($('.data-l',this).text(),10);
var pkt = (winy*2) + (losy*2);
$('.data-pct',this).text(pkt);
});
})
&#13;
table, tr, td, th {
border: 1px solid #000;
border-collapse: collapse;
padding: 10px;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table class="sp-league-table">
<thead>
<tr>
<th>Name</th>
<th>W</th>
<th>L</th>
<th>PCT</th>
</thead>
<tr>
<td>Name 1</td>
<td class="data-w">12</td>
<td class="data-l">0</td>
<td class="data-pct">x</td>
</tr>
<tr>
<td>Name 2</td>
<td class="data-w">9</td>
<td class="data-l">3</td>
<td class="data-pct">x</td>
</tr>
</table>
<table class="sp-league-table">
<thead>
<tr>
<th>Name</th>
<th>W</th>
<th>L</th>
<th>PCT</th>
</thead>
<tr>
<td>Name 1</td>
<td class="data-w">12</td>
<td class="data-l">0</td>
<td class="data-pct">24</td>
</tr>
<tr>
<td>Name 2</td>
<td class="data-w">6</td>
<td class="data-l">5</td>
<td class="data-pct">17</td>
</tr>
</table>
&#13;