动态获取选定值，并在条件[关闭]时包含该值(Get selected value dynamically and include that in if condition [closed])

动态获取选定值，并在条件[关闭]时包含该值(Get selected value dynamically and include that in if condition [closed])

如何在不加载页面的情况下动态从选择框中获取值，并在if条件下使用该值？

How to get value from select box dynamically without loading page and use that value in if condition ?

最满意答案

“没有加载页面”

我猜你的意思是“没有提交表单”并重新加载页面，因为你显然无法在不加载页面的情况下获得页面上控件的值。

做这样的事情：

var val = $("#idOfSelectHere").val(); if (val === "something" || val === "something else") { // do something } else if (val === "whatever" && someOtherCondition) { // do whatever }

显然你可以添加尽可能多的条件， else if你喜欢的话...

进一步阅读： jQuery的.val()方法

"without loading page"

I'm going to guess that you mean "without submitting the form" and reloading the page, since you obviously can't get the value of a control on a page without loading that page.

Just do something like this:

var val = $("#idOfSelectHere").val(); if (val === "something" || val === "something else") { // do something } else if (val === "whatever" && someOtherCondition) { // do whatever }

Obviously you can add as many conditions and else ifs as you like...

Further reading: jQuery's .val() method