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Python - write() versus writelines() and concatenated strings
...er '\n' as glue. It is more efficient than using the + operator.
Starting from the same lines sequence, ending up with the same output, but using writelines():
lines = ['line1', 'line2']
with open('filename.txt', 'w') as f:
f.writelines("%s\n" % l for l in lines)
This makes use of a generato...
How to implement a property in an interface
...w Company();
c.Name = "Inforsoft";
Console.WriteLine("{0} from {1}.", e.Name, c.Name);
Console.ReadKey();
}
}
/*output:
Tim Bridges from Inforsoft.
*/
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How to avoid isset() and empty()
...e key exists or not, because you know it does. If you're getting the array from an external source, the value will most likely not be null but '', 0, '0', false or something like it, i.e. a value you can evaluate with isset or empty, depending on your intent. If you regularly set an array key to nul...
Mercurial .hgignore for Visual Studio 2010 projects
...mation about my repositories, so I never copy and paste the .hgignore file from one repo to the next, instead I always build them as I go.
This is easy with TortoiseHg, as the Commit window will list all untracked files, and a simple right-click will allow me to add patterns to ignore those files. ...
Why use strong named assemblies?
...ion users are ensured that a version of the assembly they are loading come from the same publisher that created the version the application was built with.
More on strong naming from Microsoft is in Strong-Named Assemblies (MSDN).
...
In C# what is the difference between a destructor and a Finalize method in a class?
...
At least from working with Mono, C# is actually modeled after C++, and most native C# objects are C++ objects. The way the compiler that compiled Mono works dictates how those C++ objects are destructed, and likewise, how C# object f...
Converting dict to OrderedDict
...
Sounds like the confusion is from assuming an OrderedDict "applies" an ordering, rather than just retaining an ordering. I certainly assumed it would sort the input upon creation -- or that the items() function would return sorted items regardless of whe...
How to specify function types for void (not Void) methods in Java8?
...as parameters, bound them to variable references and return them as values from other methods, then they pretty much serve a similar purpose.
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How to pass a user defined argument in scrapy spider
... def parse(self, response)
self.log(self.domain) # system
Taken from the Scrapy doc: http://doc.scrapy.org/en/latest/topics/spiders.html#spider-arguments
Update 2013: Add second argument
Update 2015: Adjust wording
Update 2016: Use newer base class and add super, thanks @Birla
Update ...
Calculating sum of repeated elements in AngularJS ng-repeat
...mal list. The first thing to create a new filter for the sum of all values from the list, and also given solution for a sum of the total quantity.
In details code check it fiddler link.
angular.module("sampleApp", [])
.filter('sumOfValue', function () {
return function (data, key) {...