Method analysis for obtaining select values using javascript _ javascript skills

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 use javascript to obtain the select value, see the following example. Share it with you for your reference. The specific analysis is as follows:

1. get the displayed Chinese characters

The code is as follows:

Document. getElementById ("bigclass" ).options000000000000doc ument. getElementById ("bigclass"). selectedIndex]. text

2. get the id in the database

The code is as follows:

Invalid argument doc ument. getElementById ("bigclass"). value

3. obtain the Index id allocated by the select group.

The code is as follows:

Specified parameter doc ument. getElementById ("bigclass"). selectedIndex

Example:

Ajax experimentSuitable for me

Usage:

The code is as follows:

Document. getElementById ("bigclass" ).options000000000000doc ument. getElementById ("bigclass"). selectedIndex]. text

The result is: I am suitable for the city.

Usage:

The code is as follows:

Invalid argument doc ument. getElementById ("bigclass"). value

Result: 4

Usage:

The code is as follows:

Specified parameter doc ument. getElementById ("bigclass"). selectedIndex

Result: 1

I hope this article will help you design javascript programs.