Get Option Selection Form

Select versus Dropdown A select presents a list of options from which the users can select only one item from that list. It works best in forms when users choose an option from the select list and submit data. A dropdown presents a list of options that users can select one or several options from that list.

Using the selectedIndex property The selectedIndex property returns the index of the currently selected element in the dropdown list. This index starts from 0 and returns -1 if no option is selected.

The <select> element has some unique attributes you can use to control it, such as multiple to specify whether multiple options can be selected, and size to specify how many options should be shown at once. It also accepts most of the general form input attributes such as required , disabled , autofocus , etc.

The default value of the select element can be set by using the 'selected' attribute on the required option. This is a boolean attribute. The option that is having the 'selected' attribute will be displayed by default on the dropdown list.

To make a select mandatory with HTML, use the required attribute. With the required attribute, the user must select a value before submitting the form; if the user refuses to select a value, then the form won't submit.

In order to pre-select an item on the drop down list you can do so prior to the page being rendered by adding a selected="selected" attribute inside the required option.

A select box also called drop down box provides an option to list down various options in the form of drop down list. You can also preselect a value in dropdown list of items in HTML forms. For that, add selected in the <option> tag for the value you want to preselect.

The select tag has two primary attributes: the name and id attributes. // Syntax <select name="" id=""> <option value="">...</ option> // ... </ ... // Syntax <label for="languages">List of Languages:</label> <select name="" id="languages"> <option value="">...</ ... <select name="" id="languages" required> // ... </