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. Use the selectedIndex property. There are a variety of ways to use JavaScript to obtain the value of the selected option in a select list or a reference to the selected option: Use the value property of the select list. A function is assigned to the onchange property of each select list. A function assigned to an event handler property of an object has access to that object inside the function via the this keyword. For radiobuttons and checkboxes, the onchange event occurs when the checked state has been changed.

Tip: This event is similar to the oninput event.

The HTML Select DropDownList has been assigned a JavaScript OnChange event handler. Capture value change in input elements using onchange Attribute

Enter your name in the box and click anywhere on the page or just leave the box.

Answer: Use the jQuery :selected Selector. The following HTML Markup consists of an HTML Select DropDownList. Tip: This event is … Definition and Usage. The idea is to bind the change event handler to the select box using .change(handler) method. The onchange event occurs when the value of an element has been changed. The difference is that the oninput event occurs immediately after the value of an element has changed, while onchange occurs when the … How to Get the Value of Selected Option in a Select Box Using jQuery. Both functions assigned to onchange use this: to reference the form containing the select, to reference other elements in the form, and to access the value of the selected option. In this post, we will see how to get selected value of dropdown in JavaScript and jQuery onchange event. Now an alert is displayed whenever an option is selected from the drop-down.

Topic: JavaScript / jQuery Prev|Next. The onchange attribute fires the moment when the value of the element is changed. Whenever, someone enters a value in the input box and lose focus from the box, it will call a JavaScript function. Loop through the options and determine which one is selected and return either its value or a reference.

When an item is selected in the HTML Select DropDownList, the GetSelectedTextValue JavaScript function is executed to which the reference of the HTML Select DropDownList is passed as parameter.

1. jQuery.

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