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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 m>PHP m> or defined? in Ruby.
6 Answers
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Check if an array is empty or m>ex m>ists
...iable hoisting. Make sure you use var whenever declaring a variable:
<?m>php m> echo "var image_array = ".json_encode($images);?>
// add var ^^^ here
And then make sure you never accidently redeclare that variable later:
else {
...
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 m>PHP m>/Python/etc. to work with it on the web as needed.
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What m>ex m>actly is an Assembly in C# or .NET?
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http://www.codeguru.com/columns/csharp_learning/article.m>php m>/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 m>ex m>ecutable file. It is generated only once ...
Android Studio - How to increase Allocated Heap Size
...INAL ANSWER--------
Open file located at
/Applications/Android\ Studio.app/Contents/bin/studio.vmoptions
Change the content to
-Xms128m
-Xmx4096m
-XX:MaxPermSize=1024m
-XX:ReservedCodeCacheSize=200m
-XX:+UseCompressedOops
Xmx specifies the maximum memory allocation pool for a Java Virtual Machine ...
How to print without newline or space?
... a conversion to a tuple). I m>ex m>pect these sorts of shoddy constructs from m>PHP m>, not Python. So it's best to not ever use this.
– Eric Leschinski
Jul 26 '15 at 16:48
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Tools for JPEG optimization? [closed]
... that may help you:
http://www.imagemagick.org/script/command-line-options.m>php m>#strip
Base64 encoding in SQL Server 2005 T-SQL
...p/scptutl/sa306.htm
so has this method:
http://www.vbforums.com/showthread.m>php m>?t=554886
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Wildcards in a Windows hosts file
...ad from the offical website
http://mayakron.altervista.org/support/browse.m>php m>?path=Acrylic&name=Home
Configuring Acrylic DNS Proxy
To configure Acrylic DNS Proxy, install it from the above link then go to:
Start
Programs
Acrylic DNS Proxy
Config
Edit Custom Hosts File (AcrylicHosts.txt)
A...
Semantic Diff Utilities [closed]
...bove approximation.
EDIT Jan 2010: Versions available for C++, C#, Java, m>PHP m>, and COBOL.
The website shows specific m>ex m>amples for most of these.
EDIT May 2010: Python and JavaScript added.
EDIT Oct 2010: EGL added.
EDIT Nov 2010: VB6, VBScript, VB.net added
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