August 2006
Intermediate to advanced
1018 pages
34h 13m
English
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Name
Input.onfocus: event handler invoked when a form element gains focus — DOM Level 2 Events
Synopsis
Function onfocus
Description
The onfocus property of an
Input object specifies an event-handler function that is invoked
when the user transfers keyboard focus to that input element.
Calling focus( ) to set focus to
an element also invokes onfocus
for that object.
See Also
Element.addEventListener(
), Window.onfocus;
Chapter 17
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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.