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Logical Operators, || or OR?
I remember reading a while back in regards to logical operators that in the case of OR , using || was better than or (or vice versa).
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onSaveInstanceState () and onRestoreInstanceState ()
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Usually you restore your state in onCreate(). It is possible to restore it in onRestoreInstanceState() as well, but not very common. (onRestoreInstanceState() is called after onStart(), whereas onCreate() is called before onStart().
Use the put methods to store values in onSaveIns...
Algorithm to generate all possible permutations of a list?
Say I have a list of n elements, I know there are n! possible ways to order these elements. What is an algorithm to generate all possible orderings of this list? Example, I have list [a, b, c]. The algorithm would return [[a, b, c], [a, c, b,], [b, a, c], [b, c, a], [c, a, b], [c, b, a]].
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How to redirect cin and cout to files?
...ut.txt
}
}
int main()
{
std::ifstream in("in.txt");
std::streambuf *cinbuf = std::cin.rdbuf(); //save old buf
std::cin.rdbuf(in.rdbuf()); //redirect std::cin to in.txt!
std::ofstream out("out.txt");
std::streambuf *coutbuf = std::cout.rdbuf(); //save old buf
std::cout.rd...
Bootstrap right Column on top on mobile view
I have a Bootstrap Page like this:
11 Answers
11
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How do I create a new line in Javascript?
I am printing a pyramid of stars, I can't get the new line to print.
17 Answers
17
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npm not working - “read ECONNRESET”
I'm having a problem with npm, I cant install anything. Here is the error messages:
26 Answers
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Removing cordova plugins from the project
Somehow in my app many of the cordova plugins are installed and because of that it requires access to almost everything - from my contacts to current location ( even though this app doesn't need this ).
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How to prune local tracking branches that do not exist on remote anymore
With git remote prune origin I can remove the local branches that are not on the remote any more.
31 Answers
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Disable Laravel's Eloquent timestamps
I'm in the process of converting one of our web applications from CodeIgniter to Laravel. However at this moment we don't want to add the updated_at / created_at fields to all of our tables as we have a logging class that does all this in more depth for us already.
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