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I have a dropdown menu that allows multiple selections. I want to count the number of items selected in the menu. How do I do this.
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I have a dropdown menu that allows multiple selections. I want to count the number of items selected in the menu. How do I do this.

Count number of selected items in dropdown menu

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.