如何循环遍历所有下拉菜单以检查它们是否具有特定的选定值？
我之前问过这个问题：禁用和重新启用动态表单元素与 JQuery 但我觉得我可能问错了问题。
请参阅此小提琴以更简单的方式理解我的问题： http://jsfiddle.net/5ubTe/12/
我已经有一个函数来检查 tags 下拉菜单何时更改，我想要做的是检查类 dropdown 和 dropdown 类的所有下拉菜单code>dropdownclone 并检查其选定的值是否为 tags。
如果其中任何一个具有该值，则通过调用该函数来禁用提交按钮，如果它们都不具有 tags 值，则启用提交按钮以处理表单。
希望这是有道理的！
感谢您提供的任何帮助。
更新
I asked this question previously: Disabling and Re-Enabling Dynamic Form Elements with JQuery but I feel that I was perhaps asking the wrong question.
Please see this fiddle for an easier way to understand my problem: http://jsfiddle.net/5ubTe/12/
I already have a function to check when the tags drop down is changed and what I am looking to do is to check all dropdowns of the class dropdown and dropdownclone and check if any of their selected values are tags.
If any of them have that value then disable the submit button by calling the function, if none of them have the tags value then enable the submit button for the form to be processed.
Hope that makes sense!
Thanks for any help given.
UPDATE
Latest fiddle: http://jsfiddle.net/5ubTe/14/ but doesn't work... yet.
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您应该能够使用选择器来遍历下拉列表以检查所选选项。然后检查结果的长度，看看是否有匹配的。
You should be able to use a selector for this an tranverse the dropdowns to check for the selected options. Then check the length of the result to see if any were matched.