Checkbox is like the simplest HTML element there is, yet defaulting the checkbox is vexing. I've researched this and can't find or determine a definitive answer. Some sites say I need to use: 
-checked => "on"

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to check a box, others say 
-checked => 1

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and still others mandate 
-checked => "checked"

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What I really find though with Perl CGI is 
-checked => anything

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checks the box. Even if anything=undef ??! What you'd EXPECT is that -checked => 0, or "off", or "", or undef, or SOMETHING would toggle it off. No other HTML control field I know if is this ambigious or vexing. The only way I can find to toggle checked-by-default is to have two seperate statements with logic , one WITH -checked and one without, which is more 2X the syntax I want to use. Anyhow- perhaps a complete definitive explaination of defaulting checkboxes here will eventually get googled and help some other unfortunate JAPH who spent way too long on this seemingly trivial issue.

In reply to What's the REAL DEAL with Perl $cgi->checkbox() by misterperl

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