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I'm making an extension for reading dta from the page and stuck on reading drop down lists. I have an algorithm represented on image. List is in time to open, crate a closing object, but not in time to add closing listener to closing object. Also, when click to open a new list it closes previous, but it in time to open new, but not close previous before reading start. So, how 2 wait until all the actions on click will be happened or until some object has an event listener on click?
