获取选中的单选按钮的值，而无需重新选择按钮 [英] Get the value of checked radio button without re-selecting the buttons

问题描述

所以我得到一些如下的按钮:

So I am getting some buttons as follows:

var reportFilterButtons = $('input[name=reportfilter]', '#reportChartForm');

此后，我可以轻松地按如下方式附加更改处理程序:

Later on this easily allows me to attach a change handler as follows:

reportFilterButtons.change(handlers.reportFilterButtonsChange);

在此处理程序内，我需要获取当前选中按钮的值，所以我这样做:

Inside of this handler I need to get the value of the currently checked button, so I do this:

var checkedReportFilterButton = $('input[name=reportfilter]:checked', '#reportChartForm');
....
if (checkedReportFilterButton.val() ....

reportFilterButtons和checkedReportFilterButton选择器似乎是多余的.有没有一种方法可以通过对reportFilterButtons进行操作而不进行第二次选择来获取检查值/值?

The reportFilterButtons and checkedReportFilterButton selectors seem redundant however. Is there a way to get the checked/value by working against reportFilterButtons and not doing the second selection?

推荐答案

您可以使用$.filter查找已选中的内容:

You could use $.filter to find the checked one:

reportFilterButtons.filter(':checked').val()

这篇关于获取选中的单选按钮的值，而无需重新选择按钮的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！