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How to replace captured groups only?
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“git pull” or “git merge” between master and development branches
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How to export collection to CSV in MongoDB?
.... do this by peeking into the first document in the collection and get his set of keys
keys=`mongo "$host/$dbname" -u $user -p $pass --eval "rs.slaveOk();var keys = []; for(var key in db.${collectionArray[$i]}.find().sort({_id: -1}).limit(1)[0]) { keys.push(key); }; keys;" --quiet`;
# now us...
Are there legitimate uses for JavaScript's “with” statement?
...e this can lead to errors:
for (var i=0; i<3; ++i)
{
var num = i;
setTimeout(function() { alert(num); }, 10);
}
Because the for loop does not introduce a new scope, the same num - with a value of 2 - will be shared by all three functions.
A new scope: let and with
With the introduction of ...
What does “:=” do?
...body already said "assignment" operator. Bringing clarity to what is being set to where as opposed to the logical operator of equivalence.
In Mathematics it is like equals but A := B means A is defined as B, a triple bar equals can be used to say it's similar and equal by definition but not always ...
What is scope/named_scope in rails?
...
A scope is a subset of a collection. Sounds complicated? It isn't. Imagine this:
You have Users. Now, some of those Users are subscribed to your newsletter. You marked those who receive a newsletter by adding a field to the Users Database (...
What does addChildViewController actually do?
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Why is whitespace sometimes needed around metacharacters?
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Visual Studio support for new C / C++ standards?
...clear that:
Our primary goal is to support "most of C99/C11 that is a subset of ISO C++98/C++11."
We also for historical reasons ship a C90 compiler which accepts (only) C90 and not C++
We do not plan to support ISO C features that are not part of either C90 or ISO C++.
The blog post add links a...
Difference: std::runtime_error vs std::exception()
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