Analysis on how to obtain the select value using javascript

This article mainly introduces how to obtain the select value through javascript. The example analyzes the related skills of javascript to obtain the select element value, for more information about how to obtain the select value by using javascript, see the following example. Share it with you for your reference. The specific analysis is as follows:

1. Obtain the selected text worth

document.getElementById("bigclass").options[window.document.getElementById("bigclass").selectedIndex].text

2. Get the id in the database

window.document.getElementById("bigclass").value

3. Obtain the index id allocated by the select group.

window.document.getElementById("bigclass").selectedIndex

Example

Ajax ExperimentSuitable for me

Usage:

document.getElementById("bigclass").options[window.document.getElementById("bigclass").selectedIndex].text

The result is: I am suitable for the city.

Usage:

window.document.getElementById("bigclass").value

Result: 4

Usage:

window.document.getElementById("bigclass").selectedIndex

Result: 1