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Which is preferred: Nullable.HasValue or Nullable != null?
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The compiler replaces null comparisons with a call to HasValue, so there is no real difference. Just do whichever is more readable/makes more sense to you and your colleagues.
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Passing a String by Reference in Java?
...] += "foo"; }
From a performance point of view, the StringBuilder is usually the best option.
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How do I run a Node.js application as its own process?
.../bin
Environment=NODE_ENV=production
WorkingDirectory=/var/www/myapp
[Install]
WantedBy=multi-user.target
Note if you're new to Unix: /var/www/myapp/app.js should have #!/usr/bin/env node on the very first line.
Copy your service file into the /etc/systemd/system folder.
Tell systemd about the ...
outline on only one border
...tent comes here...</p>
</div>
(Or see external demo.)
All sizes and colors are just placeholders, you can change it to match the exact desired result.
Important note: .element must have display:block; (default for a div) for this to work. If it's not the case, please provide yo...
Which Visual C++ file types should be committed to version control?
...'d choose those:
cpp
filters
h
ico
manifest
rc
rc2
sln
txt
vcxproj
Generally, you should version all files necessary to build the project. Automatically generated files should not be archived imho.
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How to send emails from my Android application?
... ex) {
Toast.makeText(MyActivity.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
Otherwise you'll have to write your own client.
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Profiling Django
...at queries are executed on each page and how much time they take. It's a really useful, powerful and easy to use tool.
Also, read recommendations about Django performance in Database access optimization from the documentation.
And Django performance tips by
Jacob Kaplan-Moss.
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Should Javadoc comments be added to the implementation?
...methods that are implementation only (not overrides), sure, why not, especially if they are public.
If you have an overriding situation and you are going to replicate any text, then definitely not. Replication is a surefire way of causing discrepancies. As a result, users would have a different und...
Xcode Command /usr/bin/codesign failed with exit code 1 : errSecInternalComponent
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Open Keychain Access, then in the File menu select Lock All Keychains.
Then go back to Xcode and clean and rebuild. It will prompt you for your password again to unlock the keychain.
After this, assuming you have no other compile issues, it will succeed!
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Is git-svn dcommit after merging in git dangerous?
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Actually, I found an even better way with the --no-ff option on git merge.
All this squash technic I used before is no longer required.
My new workflow is now as follows:
I have a "master" branch that is the only branch that...