jquery - 如何循环遍历一个表以使用 jquery 在每一行上选择一个特定的表单元格？

Question

我正在尝试将文本放置在表格每一行的第 6 个表格单元格中。但我得到的只是选择的第一行：

$('tbody tr:even td:eq(5)').each(function(){
                $(this).text('$145');
            });

我需要做哪些调整？

Answer 1

I think that the following should work:

$('tbody tr').each(
function(){
    $(this).find('td:eq(5)').text('$145');
});

JS Fiddle demo.

Reference:

• each()
• find()
• :eq() selector
• text()

Answer 2

$( 'table tr' ).each( function() {

  $(this).find( 'td' ).eq(5).text('$145');

});

UPDATE

Since the accepted anwser does the same thing but using the :eq() selector instead of the .eq() method, it's worth reading the additional notes on the jQuery DOCs for the eq selector:

Because :eq() is a jQuery extension and not part of the CSS specification, queries using :eq() cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use $("your-pure-css-selector").eq(index) instead.

So I think it's advisable to use the .eq() method instead of the :eq() selector.