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Converting a list to a set changes element order
Recently I noticed that when I am converting a list to set the order of elements is changed and is sorted by character.
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Is PHP's count() function O(1) or O(n) for arrays?
Does count() really count the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved?
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...hat is the proper way to get a list of all available serial ports/devices on a Linux system?
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Limit text length to n lines using CSS
Is it possible to limit a text length to "n" lines using CSS (or cut it when overflows vertically).
13 Answers
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Convert data.frame column to a vector?
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Root user/sudo equivalent in Cygwin?
I'm trying to run a bash script in Cygwin.
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How does git compute file hashes?
The SHA1 hashes stored in the tree objects (as returned by git ls-tree ) do not match the SHA1 hashes of the file content (as returned by sha1sum )
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How to insert a text at the beginning of a file?
So far I've been able to find how to add a line at the beginning of a file but that's not exactly what I want. I'll show it on a example
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Convert floating point number to a certain precision, and then copy to string
I have a floating point number, say 135.12345678910 . I want to concatenate that value to a string, but only want 135.123456789 . With print, I can easily do this by doing something like:
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Difference between string and char[] types in C++
I know a little C and now I'm taking a look at C++.
I'm used to char arrays for dealing with C strings, but while I look at C++ code I see there are examples using both string type and char arrays:
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