(The select is generated with a maze of PHP functions in an app I just inherited, so this is a quick fix while I get my head around those Select a Default Value From the element. Related: Multiple Selections using jQuery Select2 Plug-in with Asp.Net. You can use the jQuery :selected selector in combination with the val() method to find the selected option value in a select box or dropdown list. One subtle point I think I’ve discovered about the top voted answers is that even though they correctly change the selected value, they do not update the element that the user sees (only when they click the widget will they see a check next to the updated element).. Chaining a .change() call to the end will also update the UI widget as well. Use MathJax to format equations. If you have two select fields and want to load options in second one, based on selected option from first one then, below example will help you lot to understand how it can be done. The :selected selector selects option elements that are pre-selected. Because :selected is a jQuery extension and not part of the CSS specification, queries using :selected cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. Lets say I have the following select element and I need to dynamically select the option with a value of 3, which would be the “Peach”. You have a select element, and you need to “select” one of its options based on one of its values. 1. jQuery: Remove all the options of a select box and then add one option and select it Last update on February 26 2020 08:07:52 (UTC/GMT +8 hours) jQuery Practical exercise Part - I : Exercise-15. Using jQuery, how do you check if there is an option selected in a select menu, and if not, assign one of the options as selected. 1- val() – method returns the value of selected attribute value. Change event on the select box to fire and once it does then just pull the id attribute of the selected option :-. The idea is to select a default value from the list of options in the element, if the user is reluctant not to select … Definition and Usage. In this example, we are going to help to get the value of the selected option in the select box using jQuery. The jQuery select option syntax in the script tag is below: $(“selector option: selected”); The jQuery select option is used to display selected content in the option tag. To achieve the best performance when using :selected to select elements, first select the elements using a pure CSS selector, then use .filter(":selected"). Note: This selector will not work on checkboxes or radio buttons.Use the :checked selector instead. If you wanted to get the string "Mr" if the first option was selected (instead of just "1") you would do that in the following way: 1. This is optional. Answer: Use the jQuery :selected Selector. Topic: JavaScript / jQuery Prev|Next. Select elements typically have two values that you want to access. You could try and force the option to be selected. Because jQuery doesn't throw errors when it doesn't have a set of elements, you can use this to your advantage inside an if statement. The jQuery select option with. The option tag is always placed inside of the select tag. 2 ... jQuery … text syntax is below: var variableValue = $(“selector option: selected… Couple this with jQuery's chaining and you can do something like: I want to select a specific option of a select tag: the select has as follows: Red How to dynamically select option in dropdown menu? jQuery provides two methods to get the value of the selected option from the select box. How to Get the Value of Selected Option in a Select Box Using jQuery. var selectedVal = $("#myselect option:selected").val(); It is just an example and it might help in some scenarios. 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