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Creating the Singleton design pattern in PHP5
.../en/language.variables.scope.php#language.variables.scope.static to understand static variable scopes and why setting static $inst = null; works.
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List all svn:externals recursively?
...here is an option in the TortoiseSVN installer to also install the SVN command line client. This option is not enabled by default.
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How to programmatically set style attribute in a view
...te the your Button can be in, whether focused, selected, pressed, disabled and so on.
For example, to get your button to change colour when it's pressed, you could define an XML file called res/drawable/my_button.xml directory like this:
<?xml version="1.0" encoding="utf-8"?>
<selector xm...
How to get base url with jquery or javascript?
...nswer by @Artjom B. For example, when a site is tested over local network (and domain is substituted with IP + local path) the base url could be something like 192.168.0.23/~sites/site/html/ instead of site.dev. Getting the full pathname with Javascript is not an option too, because a site can have ...
what is the unsigned datatype?
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unsigned really is a shorthand for unsigned int, and so defined in standard C.
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Python: try statement in a single line
... in Python, like you would in some other dynamic languages. The safer way (and the prevailing style) is to set all variables to something. If they might not get set, set them to None first (or 0 or '' or something if it is more applicable.)
If you do assign all the names you are interested in fir...
How does Apple know you are using private API?
...es the app has linked to. Something clearly you should not use, like IOKit and WebKit can be detected by this.
2. nm -u
This will list all linked symbols. This can detect
Undocumented C functions such as _UIImageWithName;
Objective-C classes such as UIProgressHUD
Ivars such as UITouch._phase (wh...
How to flatten nested objects with linq expression
...ed Feb 2 '15 at 9:41
Madhukar BhandariMadhukar Bhandari
3977 bronze badges
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Is it possible to Pivot data using LINQ?
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GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape). To pivot, you must project the hierarchy back into a row/column form of your choosing.
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AndroidRuntime error: Parcel: unable to marshal value
...izable but is the Bottle class serializable? If not, it will not serialize and will throw errors at runtime.
Make the Bottle class implement the java.io.Serializable interface
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