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Javascript

2023-03-29 10:14| 来源: 网络整理| 查看: 265

Before starts creating a dropdown list, it is important to know what is a dropdown list. A dropdown list is a toggleable menu that allows the user to choose one option from multiple ones. The options in this list are defined in coding, which is associated with a function. When you click or choose this option, that function triggers and starts performing.

You have seen a dropdown list most of the time on registration forms to select the state or city from the dropdown menu. A dropdown list allows us to choose only one from the list of items. See the below screenshot how the dropdown list looks like-

Important points to create a dropdown list

The tab is used with tab to create the simple dropdown list in HTML. After that JavaScript helps to perform operation with this list.

Other than this, you can use the container tab to create the dropdown list. Add the dropdown items and links inside it. We will discuss each method with an example in this chapter.

You can use any element such as , , or

to open the dropdown menu.

See the below examples to create a dropdown list using different methods.

Examples

Simple dropdown list using tab

It is a simple example of creating a simple and easy dropdown list without using any complicated JavaScript code and CSS stylesheet.

Copy Code

dropdown menu using select tab function favTutorial() { var mylist = document.getElementById("myList"); document.getElementById("favourite").value = mylist.options[mylist.selectedIndex].text; } Select you favourite tutorial site using dropdown list ---Choose tutorial--- w3schools Javatpoint tutorialspoint geeksforgeeks

Your selected tutorial site is:



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