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How can I get a side-by-side diff when I do “git diff”?
... your terminal width. See the ydiff GitHub repository page for detail and demo.
Tested in Git 2.18.0, ydiff 1.1.
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Select the values of one property on all objects of an array in PowerShell
...ions; it is a faster - all-in-memory-at-once - alternative to the pipeline-based ForEach-Object cmdlet (%).
Comparing the performance of the various approaches
Here are sample timings for the various approaches, based on an input collection of 10,000 objects, averaged across 10 runs; the absolute...
Tuples( or arrays ) as Dictionary keys in C#
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Between tuple and nested dictionaries based approaches, it's almost always better to go for tuple based.
From maintainability point of view,
its much easier to implement a functionality that looks like:
var myDict = new Dictionary<Tuple<TypeA, TypeB, T...
Check if OneToOneField is None in Django
...n < 3.2, hasattr will swallow all exceptions that happen during the database lookup, and not just DoesNotExist. This is probably broken, and not what you want.
– Pi Delport
Mar 22 '13 at 12:45
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Attach to a processes output for viewing
...tion is to launch your program inside of 'screen', which is a sort-of text-based Terminal application. Screen sessions can be attached and detached, but are nominally meant only to be used by the same user, so if you want to share them between users, it's a big pain in the ass.
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Get MD5 hash of big files in Python
... m.update( buf )
return m.hexdigest()
The update above was based on the comments provided by Frerich Raabe - and I tested this and found it to be correct on my Python 2.7.2 windows installation
I cross-checked the results using the 'jacksum' tool.
jacksum -a md5 <filename>
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Locking a file in Python
...olutions online, but most fail for my purposes as they are often only Unix based or Windows based.
13 Answers
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How to create .pfx file from certificate and private key?
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I can recommend DigiCert based on several years of experience with them.
– mmell
Feb 10 at 20:14
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How to sort an array in descending order in Ruby
...1.9
Here are results for Ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-darwin10.8.0]:
user system total real
sort 1.340000 0.010000 1.350000 ( 1.346331)
sort reverse 1.300000 0.000000 1.300000 ( 1.310446)
sort_b...
What are the rules for calling the superclass constructor?
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Base class constructors are automatically called for you if they have no argument. If you want to call a superclass constructor with an argument, you must use the subclass's constructor initialization list. Unlike Java, C++...