如何通过名称获取所选元素，然后使用jQuery从下拉列表中获取所选值? [英] How do I get the selected element by name and then get the selected value from a dropdown using jQuery?

问题描述

我可以通过名称找到我的选择元素，但是我找不到与之关联的选择值.

I am able to find my select element by name, but I'm having trouble finding the selected value associated with it.

这是我的下面的代码:

<select  name="a[b]" onchange='mySelectHandler("a[b]")'>
     <option value='Choice 1'>Choice 1</option>
     <option value='Choice 2'>Choice 2</option>

</select>

然后，在我的处理程序中，我正在使用:

then, in my handler I am using:

function mySelectHandler(name){
     var mySelect = $('select[name=' + name)
     // try to get selected value
     // alert ("selected " + mySelect.val())
     console.log("object "+ mySelect.toSource());
  }

我打印到日志的结果是:

The result of my print to the log is:

object({length:0，prevObject:{0:({})，context:({})，length:1}，context:({})，选择器:"select [name = a [b] })

object ({length:0, prevObject:{0:({}), context:({}), length:1}, context:({}), selector:"select[name=a[b]"})

关于如何执行此操作的任何想法?

Any ideas as to how to do this?

推荐答案

您的选择器有点小，它缺少尾随的]

Your selector is a little off, it's missing the trailing ]

var mySelect = $('select[name=' + name + ']')

您可能还需要在名称周围加上引号，如下所示:

you may also need to put quotes around the name, like so:

var mySelect = $('select[name="' + name + '"]')

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