javascript change dropdown selected value

Asking for help, clarification, or responding to other answers. The selectedIndex property sets or returns the index of the selected option in a drop-down list. The second and third dropdown list will display different options, depending on the value selected in the parent dropdown list. Simplest code that worked is below: var newValue1 = 'Mango'var selectElement = document.getElementById('myselectid');selectElement.options[selectElement.selectedIndex].value = newValue1;selectElement.options[selectElement.selectedIndex].textContent = newValue1; In a Javascript combobox you can set a selected value as you wish. Why does my advisor / professor discourage all collaboration? Using this reference, the selected Text and Value is determined and is displayed using JavaScript alert message box. Otherwise, no, you can't. Instead of iteration all over the options or using JQuery you can do using core JS in simple steps: So you must know the value of the option to select. How to refresh default display option in select by javascript or jquery? Asking for help, clarification, or responding to other answers. Red Blue Green Yellow Orange. Why do small patches of snow remain on the ground many days or weeks after all the other snow has melted? Return Value: A String, representing the value of the value attribute of an element in the drop-down list. Print a conversion table for (un)signed bytes. Sci-fi book in which people can photosynthesize with their hair. How to target selected attribute(in HTML option) in CSS or Javascript. If the drop-down list allows multiple selections, the first selected option is returned. This article shows the methods by which a element can be styled in Bootstrap, using both custom styles and bootstrap-select. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Feel free to accept the answer which solves your problem by clicking the empty tick below the vote count on the top left hand side of the answer. Pre-Render Selection. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Step 1) Add HTML: Convert form data to JavaScript object with jQuery. When the Button is clicked, the Reset JavaScript function is executed. And select the checkmark next to the answer you choose. How to set selected value in a Dropdownlist. Here Mudassar Ahmed Khan has explained with an example, how to show and hide HTML DIV with TextBox based on DropDownList (HTML SELECT) selected value (selection) using JavaScript and jQuery. No problem llihttocs, be sure to click the up arrow next to questions/comments you find helpful. I'm creating a Update Profile page where a user's profile is retrieved from the database and a form is shown with those values. Edit in JSFiddle Note, that.val () does not fire the change event. Get selected value in dropdown list using JavaScript. How do I check if an element is hidden in jQuery? Remember: you may use sel.value = 'bike' instead of document.getElementById('sel').value – Eduardo Xavier Feb 9 '15 at 18:20 2 @EduardoXavier, if you first run 'var sel = document.getElementById('sel');', then yes, you can. Then you can use javascript/jquery to compare whether the current dropdown value different with the hidden value [previous dropdown value]. How do I remove a property from a JavaScript object? Stack Overflow for Teams is a private, secure spot for you and How to assign 'selected' attr in 'select/option' tags based of option value? If one matches, I want to set the selected attribute of that option. I … @llihttocs: Glad I helped. You have a select element, and you need to “select” one of its options based on one of its values. Create Three Dropdown Lists. Best of luck. Remember: you may use sel.value = 'bike' instead of document.getElementById('sel').value, @EduardoXavier, if you first run 'var sel = document.getElementById('sel');', then yes, you can. If no option selected … Following is the function for JavaScript that will return the selected value or text from the dropdown list: