August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Content preview from Pure JavaScript
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getOptionValue()
Nes2+Syntax
getOptionValue(key, num)
Description
The getOptionValue function is a top-level function that is not associated with any object. This function returns the same value as the client-side Option.text property. The key passed in as an argument represents the NAME attribute of the <SELECT> tag, while the num parameter is the indexed position of the selected option. Specifying num to 0 can reference the first selected option, which may not be the first option.
Example
Listing 8.91 displays a multi-select option box that allows a user to select different sports. When the Submit button is clicked, the form is sent back to itself and the script then uses a for loop and the getOptionValue function to write the submitted ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.