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What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
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What is the purpose of AsQueryable()?
...m. This allows you to avoid writing two separate versions of very generalized helper methods.
It allows you to change the compile time type of a queryable to be an IQueryable, rather than some more derived type. In effect; you'd use it on an IQueryable at the same times that you'd use AsEnumerable...
font-style: italic vs oblique in CSS
...oved by the designers themselves... some fonts were meant not to be italicized or obliqued... but people did anyway. And as you may know, some operating systems will, upon clicking the 'italic' icon, skew the font and create an oblique on the fly. Not a pleasant sight.
It's best to specify an itali...
Why doesn't the JVM cache JIT compiled code?
...onical JVM implementation from Sun applies some pretty sophisticated optimization to bytecode to obtain near-native execution speeds after the code has been run a few times.
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Why JSF saves the state of UI components on server?
...;client</param-value>
</context-param>
It will then be serialized to an encrypted string in a hidden input field with the name javax.faces.ViewState of the form.
I dont understand what the benefit of keeping the UI component's state on the server side is. Isn't directly passing the va...
Test if a command outputs an empty string
...lly, you can inspect $?, which contains the exit code of the last command (zero for success, non-zero for failure). For example:
files=$(ls -A)
if [[ $? != 0 ]]; then
echo "Command failed."
elif [[ $files ]]; then
echo "Files found."
else
echo "No files found."
fi
More info here.
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Does MySQL ignore null values on unique constraints?
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answered Sep 14 '10 at 19:34
Mark ByersMark Byers
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How does Bluebird's util.toFastProperties function make an object's properties “fast”?
...o" + o); // ensure no dead code elimination
}
Sans one or two small optimizations - all the below is still valid.
Let's first discuss what it does and why that's faster and then why it works.
What it does
The V8 engine uses two object representations:
Dictionary mode - in which object are stored a...
Mock vs MagicMock
...erett
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shared_ptr to an array : should it be used?
...deleter above may be replaced by
the std::default_delete partial specialization for array types
std::shared_ptr<int> sp(new int[10], std::default_delete<int[]>());
a lambda expression
std::shared_ptr<int> sp(new int[10], [](int *p) { delete[] p; });
Also, unless you actuall...