javascript - Show select box options on external trigger

Question

Can anyone explain to me how to trigger the "open" event on a select box ?

I've seen many sites hide select boxes and trigger it to open when clicking a div. Unify.js does this. I've gone through every line of code in Unify and I can't find out how to do it

Thanks

Answer 1

睡了之后，我意识到像 Unify 这样的插件不会触发选择元素打开。相反，真正的选择框被放置在人造选择框之上并设置为 0 不透明度。这给人的印象是，当您实际上只是单击/点击不可见的选择元素时，甚至会触发 javascript。