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Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
...ctor (since it's part of the class anyway). it's even WORSE, since you can now get a null return value, opening up for NREs and "what the hell does this null mean?" questions.
– sara
Dec 28 '15 at 9:44
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Understanding :source option of has_one/has_many through of Rails
...want to access Dog.find(123).breeds as a nice and convenient association.
Now, if we now want to create a has_many :dog_breeds, :through => :dogs association on Pet, we suddenly have a problem. Rails won't be able to find a :dog_breeds association on Dog, so Rails can't possibly know which Dog a...
How can I check if a program exists from a Bash script?
...y matter anymore and both type and hash become perfectly safe to use. type now has a -P to search just the PATH and hash has the side-effect that the command's location will be hashed (for faster lookup next time you use it), which is usually a good thing since you probably check for its existence i...
How to convert a Git shallow clone to a full clone?
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EDIT: git fetch --unshallow now is an option (thanks Jack O'Connor).
You can run git fetch --depth=1000000 (assuming the repository has less than one million commits).
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How to keep up with the latest versions of Node.js in Ubuntu? PPA? Compiling?
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Alas it's not tight at all now... I have 0.10.12 which is being shown in Ubuntu as the latest and greatest, whereas the world has moved onto 0.10.20
– kumarharsh
Oct 16 '13 at 13:47
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Java JUnit: The method X is ambiguous for type Y
...d some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code:
3 Answers
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Tools to get a pictorial function call graph of code [closed]
...tool to visualize callgrind data.
kcachegrind callgrind.out.1234
You are now left inside an awesome GUI program that contains a lot of interesting performance data.
On the bottom right, select the "Call graph" tab. This shows an interactive call graph that correlates to performance metrics in oth...
Difference between @import and link in CSS
...a 1000 page website and we link to a CSS file from every page on the site. Now let's imagine we want to add a second CSS file to all of those pages. We could edit all 1000 HTML files and add a second CSS link or a much better way would be to import the second CSS file from within the first file. We ...
Split views.py in several files
... like this:
from viewsa import *
from viewsb import *
I actually don't know about speed issues (but I doubt there are any).
For Models it might be a bit difficult.
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How to run JUnit test cases from the command line
...nix) and here (Java 8, Windows). Apparently wildcards in the classpath are now supported.
– David Tonhofer
Aug 8 '15 at 16:54
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