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Determine if variable is defined in Python [duplicate]
...eleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby.
6 Answers
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What's the best way to inverse sort in scala?
...e)
More generally, sorting may be done by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
You can do
list.sorted(theOrdering.reverse)
If the ordering you want to reverse is the implicit ordering, you can get it by im...
Google Authenticator available as a public service?
...o not know if there is a specific implementation for your server software (PHP, Java, .NET, etc.)
But, specifically, you don't need an offsite service to handle this.
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How to send a PUT/DELETE request in jQuery?
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$.ajax will work.
$.ajax({
url: 'script.php',
type: 'PUT',
success: function(response) {
//...
}
});
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Escape Character in SQL Server
...on't consider it. More info at Google or: http://it.toolbox.com/wiki/index.php/How_do_I_escape_single_quotes_in_SQL_queries%3F
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How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw
...se they use annotations (e.g. PrettyFaces), you might need to add explicit ordering via web.xml. See How to define servlet filter order of execution using annotations in WAR
Only if you're using the PrimeFaces file upload filter: There's another Filter in your webapp which runs before the PrimeFaces...
Cron jobs and random times, within given hours
I need the ability to run a PHP script 20 times a day at completely random times. I also want it to run only between 9am - 11pm.
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Display an array in a readable/hierarchical format
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<?php foreach($data[0] as $child) { echo $child . "<br />"; }?> this worked great thanks Brian !
– Xavier
Mar 22 '11 at 14:58
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Remove multiple whitespaces
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Note that in PHP \s not including "vertical tab" chr(11). To include it too you need to use space character class: [[:space:]]+ php.net/manual/en/regexp.reference.character-classes.php
– Yaroslav
Oct...
Keep file in a Git repo, but don't track changes
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For my Code Igniter projects, I keep database.php.example and config.php.example in the repo.
Then I add config.php and applications/config/database.php to the .gitignore file.
So, finally, when I deploy, I can copy the .example files (to config.php and database.php), ...