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What's the fastest way to read a text file line-by-line?
...ify FileOptions. For example, if you are reading a large file sequentially from beginning to end, you may benefit from FileOptions.SequentialScan. Again, benchmarking is the best thing you can do.
Using File.ReadLines
This is very much like your own solution except that it is implemented using a S...
Why do we need argc while there is always a null at the end of argv?
... says
2 ...argc shall be the number of arguments passed to the program from
the environment in which the program is run. .... The value of argc
shall be non-negative. The value of argv[argc] shall be 0.
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When and why would you seal a class?
...he keyword sealed (or NotInheritable in VB) is used to protect a class from any inheritance chance (the class will be non-inheritable). I know that one feature of object-oriented programming is inheritance and I feel that the use of sealed goes against this feature, it stops inheritance.
Is ...
Get a UTC timestamp [duplicate]
...t UTC timestamp in JavaScript? I want to do this so I can send timestamps from the client-side that are independent of their timezone.
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How does the HyperLogLog algorithm work?
....
The problem is that the assumption of having evenly distributed numbers from 0 t 2^k-1 is too hard to achieve (the data we encountered is mostly not numbers, almost never evenly distributed, and can be between any values. But using a good hashing function you can assume that the output bits would...
Enable Vim Syntax Highlighting By Default
...bly don't have a
$HOME/.vimrc or $HOME/_vimrc (known collectively as vimrc from now on). In that case, you have two options:
Create an empty vimrc.
Copy vimrc_example.vim as your vimrc (recommended, thanks @oyenamit). You can find vimrc_example.vim in the runtime directory.
The location of the r...
Rails: Open link in new tab (with 'link_to')
...king for how to open a link in a new tab within html (for anyone came here from Google), here:
<a href="http://www.facebook.com/mypage" target="_blank">Link name</a>
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Sort a list of tuples by 2nd item (integer value) [duplicate]
...hould be a function that identifies how to retrieve the comparable element from your data structure. In your case, it is the second element of the tuple, so we access [1].
For optimization, see jamylak's response using itemgetter(1), which is essentially a faster version of lambda x: x[1].
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Collections.emptyList() vs. new instance
...let the compiler infer the type parameter of the generic method invocation from the target type: List<Foo> list = Collections.emptyList()
– Paul Jackson
May 15 '15 at 20:16
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Relative paths based on file location instead of current working directory [duplicate]
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This will make your shell script work independent of where you invoke it from. Each time you run it, it will be as if you were running ./cat.sh inside dir.
Note that this script only works if you're invoking the script directly (i.e. not via a symlink), otherwise the finding the current location ...