You need to detect the onchange event on the datalist. The value -1 indicates that no element is selected. target property index.html This did worked for me in different way. Asking for help, clarification, or responding to other answers. If no option is selected then nothing will be returned. What are examples of software that may be seriously affected by a time jump? BTW: I am using "manual" form validation (see "is-valid"/"is-invalid"), because I (and users) didn't like that BS4 marks non-required empty fields as green. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. }, Might be useful to people looking this up today if this wasn't default behavior 7 years ago, You set the onchange handler to some function or string. A better solution would be: Thats all about getting the selected value of dropdown in JavaScript and Query on change. How can the mass of an unstable composite particle become complex? I will you use the onclick and onchange to get value selected option.you can easy to get selected option value bellow follow example. I am iterating over a list of topics that is stored in the model context, showing all groups with their topics, and after that all topics that do not have a group. It depends on when you want to get the value (on change, on a button click, etc.). Please refer, ="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"> and no one suggested label. DOM find current selected drop down element, Call function based on dropdown selection, How to get the value of a selected text in javascript, Get value selected in dropdown list using Javascript (displays null). onchange event is considered one of the very important property of the GlobalEventHandlers which is part of the EventHandler for making manipulations with the changes in the event. This eliminates the need for locating a form in the DOM tree and then locating this element inside the form. You can add your comment about this article using the form below. The number of distinct words in a sentence. Thanks for contributing an answer to Stack Overflow! Connect and share knowledge within a single location that is structured and easy to search. If you want to set previous value in the function you can use the global variable. Can I use a vintage derailleur adapter claw on a modern derailleur, Is Hahn-Banach equivalent to the ultrafilter lemma in ZF, Parent based Selectable Entries Condition. I was under the impression that I could get the value of a select input by doing this $(this).val(); and applying the onchange parameter to the select field. But I'm just guessing about that. Lets say currently option My is selected now when I change it to stack in the onchange event (i.e. difference is that the onchange event also works on