javascript get selected option value onchange

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). How do I check if an array includes a value in JavaScript? Lets say currently option My is selected now when I change it to stack in the onchange event (i.e. Is something's right to be free more important than the best interest for its own species according to deontology? Unlike the input event, the change event doesnt necessarily fire every time the value of an element changes. The onchange event is one of the events in JavaScript which is used for making the change in the state and transforming the value once the event is triggered. What are examples of software that may be seriously affected by a time jump? In the below example, when there is a change in the dropdown list selection, the logInConsole() method gets the element's value and prints it in the console. Book about a good dark lord, think "not Sauron". @Perplexor yes, it won't work with keys, otherwise it will store each values every time you press the key. I must be doing something wrong because when I try this I get back the text of every option in the drop down. Find centralized, trusted content and collaborate around the technologies you use most. This is an improvement on @thisisboris answer. This is an old question, but I am not sure why people didn't suggest using the event object to retrieve the info instead of searching through the DOM again. Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not? Why does Jesus turn to the Father to forgive in Luke 23:34? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. The HTMLSelectElement.selectedIndex property is a long that reflects the index of the first or last selected <option> element, depending on the value of multiple. jQuery is valid JavaScript code, but not all JavaScript is jQuery. Truce of the burning tree -- how realistic? Asking for help, clarification, or responding to other answers. 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. Enter your email address to subscribe to new posts. You can also do like: In vanilla JavaScript, you can use the onchange property to specify an event handler to receive change events. So shady, before you were doing on click which did the notification if you clicked on it for the car. rev2023.3.1.43269. A select boxes value could never be changed by the user. I want to add, Show phone code of a country selected in dropdown Laravel, How to use if statement if you have three drop down selected values using javascript and html. Connect and share knowledge within a single location that is structured and easy to search. This did worked for me in different way. All of the data required by the select elements is included within the Web page. :), Note that you should also focus out select element in your change handler, otherwise it won't be triggered after repeated value change. August 20, 2014 at 10:07 am. Here is a fixed version. so that this <option> will be the default value selected in the <select> element when the page is first loaded. If 'focus' can work with 'live' event it will be perfect. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Why was the nose gear of Concorde located so far aft? Note: If the drop-down list allows multiple selections it will only return the index of the first option selected. To get the value of a select or dropdown in HTML using pure JavaScript, first we get the select tag, in this case by id, and then we get the selected value through the selectedIndex property. and text. What type of value are you expecting? By attaching the change listener to the body, you can pretty much be sure this will fire after specific listeners for the selects, otherwise the value of 'data-previous' will be overwritten before you can even read it. You can grab the value in one line: I wonder that everyone has posted about value and text option to get from