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Default value of function parameter
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@httpinterpret: in one sense yes, the default value of b is defined once for each .cpp file that includes the header. But that's okay, because you've only got one declaration of the Add function.
– Greg Hewgill
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Convert MySql DateTime stamp into JavaScript's Date format
Does anyone know how I can take a MySQL datetime data type value, such as YYYY-MM-DD HH:MM:SS and either parse it or convert it to work in JavaScript's Date() function, for example:- Date('YYYY, MM, DD, HH, MM, SS);
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Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
...address)
can be rewritten to
account&.owner&.address
However, one should be careful that & is not a drop in replacement of #try. Take a look at this example:
> params = nil
nil
> params&.country
nil
> params = OpenStruct.new(country: "Australia")
#<OpenStruct countr...
What techniques can be used to speed up C++ compilation times?
... between headers and reduces the amount of recompilation that needs to be done.
Forward Declarations
Wherever possible, use forward declarations. If the compiler only needs to know that SomeIdentifier is a struct or a pointer or whatever, don't include the entire definition, forcing the compiler t...
WWW or not WWW, what to choose as primary site name? [closed]
From technical perspective the only issue is traffic and incoming links (one of them should redirect to another).
14 Answe...
Move branch pointer to different commit without checkout
To move the branch pointer of a checked out branch, one can use the git reset --hard command. But how to move the branch pointer of a not-checked out branch to point at a different commit (keeping all other stuff like tracked remote branch)?
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How are people unit testing with Entity Framework 6, should you bother?
...ings/implementations are working with your database. In my opinion this is one of the most important parts of a system you can test.
Strictly speaking however we're moving out of the domain of unit testing and into integration testing but the principles remain the same.
The first thing you need to...
Javascript calculate the day of the year (1 - 366)
...r start = new Date(now.getFullYear(), 0, 0);
var diff = now - start;
var oneDay = 1000 * 60 * 60 * 24;
var day = Math.floor(diff / oneDay);
console.log('Day of year: ' + day);
Edit: The code above will fail when now is a date in between march 26th and October 29th andnow's time is before ...
How is Node.js inherently faster when it still relies on Threads internally?
...ak due to bugs and 2) not use them as efficiently as possible. (2) is the one you're asking about.
Think about one of the examples he gives, where a request comes in and you run some query, and then do something with the results of that. If you write it in a standard procedural way, the code migh...
Looping over arrays, printing both index and value
...e), so:
for i in "${!foo[@]}"; do
printf "%s\t%s\n" "$i" "${foo[$i]}"
done
Which means that indices will be in $i while the elements themselves have to be accessed via ${foo[$i]}
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