August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Content preview from Pure JavaScript
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Checkbox.checked
JavaScript 1.0+, JScript 3.0+ Nav2+, IE 4+, Opera3+ Syntax
document.form. checkbox.checked
Description
The checked property holds the current state of a check box. Because this property is a read/write Boolean, the state of the check box can be altered by changing this property.
Example
In Listing 7.37, the user is asked to select the door style wanted on his or her new car. When the order is submitted, the checked property of each check box is analyzed to determine if two different door styles were selected or none at all. If two styles were selected, the check boxes are reset by altering the checked property.
Listing 7.37 Modifying the checked Property of a Check Box
<html> <h2>Car Purchase Sheet</h2> Step1: Please ... |
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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.
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