我想在 jquery 中选择一个 down list 中选中的项目的代号
networkId = $("#availableFbProfiles").selectedIndex.id;
但控制台上的错误是
Cannot read property id of undefined
尝试此 :
networkId = $("#availableFbProfiles option:selected").prop("id");
如果您重新使用旧版本的 jQuery ( & lt; 1. 7), 使用 < code> attr () 而不是 prop () 。
尝试
$("#availableFbProfiles option:selected").get(0).id
networkId = $("#availableFbProfiles option:selected").prop("");
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