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Efficient way to return a std::vector in c++
...ut the user might want to do this:
std::vector<int> myvec;
... some time later ...
myvec = f();
Copy elision does not prevent a copy here because it's an assignment rather than an initialization. However, you should still return by value. In C++11, the assignment is optimized by something d...
How to extract one column of a csv file
... default.)
read -a csv_line; - this is saying read in each line, one at a time and create an array where each element is called "csv_line" and send that to the "do" section of our while loop
do echo "${csv_line[0]}";done < file - now we're in the "do" phase, and we're saying echo the 0th element...
When should I use semicolons in SQL Server?
... the deprecation. I don't expect it would be a problem on 2008 most of the time.
– Pilot_51
Jun 4 '18 at 19:59
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Use jQuery to hide a DIV when the user clicks outside of it
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I needed that the container is hide one time with this event, this callback should be destroyed when used. To do that, i used namespace on click event with bind("click.namespace") and when the event occurred, i call unbind("click.namespace"). And finally, i used $(...
What does the ^ operator do in Java?
...ue elements
If you have an array with all numbers repeating even number of times except one which repeats odd number of times you can find that by XORing all elements.
Swapping values without using temporary variable
Finding missing number in the range 1 to n
Basic validation of data sent over the n...
Abstract methods in Python [duplicate]
...bject does not match type requirements; this can only be discovered at run time. If you require that a subclass implement a method, document that, and then just call the method in the blind hope that it will be there.
If it's there, fantastic, it simply works; this is called duck typing, and your o...
How do I tar a directory of files and folders without including the directory itself?
... This is a great solution. You can also pass --xform multiple times for multiple paths.
– elig
Jan 2 at 15:51
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Javascript add leading zeroes to date
... won't understand the options argument.
Please note, there is also toLocaleTimeString, that allows you to localize and format the time of a date.
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How do I connect to this localhost from another computer on the same network?
...local really means, you need to edit the hosts file on your computer. Everytime you type an URL in your browser, your computer tries to understand what it means! symfony.local doesn't mean anything for a computer. So it will try to resolve the name symfony.local to an IP address. It will do this by ...
How to get image size (height & width) using JavaScript?
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document.getElementById is longer to type but 10 times faster than $('#...')[0].
– bfontaine
Aug 12 '14 at 9:57
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