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Should functions return null or an empty object?
What is the best practice when returning data from functions. Is it better to return a Null or an empty object? And why should one do one over the other?
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How do you remove a specific revision in the git history?
...ive you enough of an idea to figure it out. (Or someone else might know).
From the git documentation:
Start it with the oldest commit you want to retain as-is:
git rebase -i <after-this-commit>
An editor will be fired up with all the commits in your current branch (ignoring merge commits)...
Single Line Nested For Loops
...ften faster than using a for loop.
Look at this longer list comprehension from the tutorial (the if part filters the comprehension, only parts that pass the if statement are passed into the final part of the list comprehension (here (x,y)):
>>> [(x, y) for x in [1,2,3] for y in [3,1,4] if...
Database Structure for Tree Data Structure
...2
Joe Celko has written a book on this subject, which is a good reference from a general SQL perspective (it is mentioned in the nested set article link above).
Also, Itzik Ben-Gann has a good overview of the most common options in his book "Inside Microsoft SQL Server 2005: T-SQL Querying".
The ...
How do I get the full path of the current file's directory?
...one.
Also note that if you are running interactively or have loaded code from something other than a file (eg: a database or online resource), __file__ may not be set since there is no notion of "current file". The above answer assumes the most common scenario of running a python script that is in...
What's the difference between xsd:include and xsd:import?
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Use xsd:include to bring in an XSD from the same or no namespace.
Use xsd:import to bring in an XSD from a different namespace.
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Get the subdomain from a URL
Getting the subdomain from a URL sounds easy at first.
16 Answers
16
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how to make a specific text on TextView BOLD
...String = "<b>" + id + "</b> " + name;
mytextview.setText(Html.fromHtml(sourceString));
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Displaying the build date
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The most reliable method turns out to be retrieving the linker timestamp from the PE header embedded in the executable file -- some C# code (by Joe Spivey) for that from the comments to Jeff's article:
public static DateTime GetLinkerTime(this Assembly assembly, TimeZoneInfo target = null)
{
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Exact time measurement for performance testing [duplicate]
...ierhofer here
Basically his code looks like:
//prevent the JIT Compiler from optimizing Fkt calls away
long seed = Environment.TickCount;
//use the second Core/Processor for the test
Process.GetCurrentProcess().ProcessorAffinity = new IntPtr(2);
//prevent "Normal" Processes from interrupting Th...