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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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Check if an array is empty or exists
...iable hoisting. Make sure you use var whenever declaring a variable:
<?php echo "var image_array = ".json_encode($images);?>
// add var ^^^ here
And then make sure you never accidently redeclare that variable later:
else {
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image_array = []; // no var here
}
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When would I use XML instead of SQL? [closed]
...used, which is storing all of my data in a (My)SQL database and then using PHP/Python/etc. to work with it on the web as needed.
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What exactly is an Assembly in C# or .NET?
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http://www.codeguru.com/columns/csharp_learning/article.php/c5845
An assembly is a file that is automatically generated by the compiler upon successful compilation of every .NET application. It can be either a Dynamic Link Library or an executable file. It is generated only once ...
Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations
...fferent than ApplicationDbContext. I went on to use that context which was site related data for about 6 months, then it came time to start messing around with my ApplicationUser. My basic login and registration was working, but I wanted to extend the user class to add some additional fields. This a...
Git push failed, “Non-fast forward updates were rejected”
...h the command line. Also this may not be possible with SmartGit.) See this site for more information: http://help.github.com/remotes/
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Is there a C# case insensitive equals operator?
..., you're currently violating the help center guidelines; links to external sites are fine, but you've not summarized the content sufficiently (turkish 'i' problem). SO is not your advertising platform.
– antiduh
May 18 '15 at 13:24
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How do I ignore ampersands in a SQL script running from SQL Plus?
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You can also specify this in the glogin.sql site profile setup file or the login.sql user profile setup file
– David Aldridge
Sep 23 '08 at 14:37
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Recursively remove files
...ros, as well as cygwin and OS X.
You can find more information on the zsh site.
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Semantic-ui vs Bootstrap [closed]
...k right now is that it's not mobile-centric. So if you want a well styled site, use Semantic-UI.
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