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Using regular expression in css?
I have an html page with divs that have id (s) of the form s1 , s2 and so on.
8 Answers
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add a string prefix to each value in a string column using Pandas
...r's solution (python 3.6.4):
df = pd.DataFrame({'col':['a', 0]*200000})
%timeit df['col'].apply(lambda x: f"str{x}")
117 ms ± 451 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)
%timeit 'str' + df['col'].astype(str)
112 ms ± 1.04 ms per loop (mean ± std. dev. of 7 runs, 10 loops each...
Postgres and Indexes on Foreign Keys and Primary Keys
... @Matthias - Ah, got it. Thanks. Yeah, I obviously didn't take time to read through the code. It wasn't critical enough to bother. The OP could've mentioned the limitations. Maybe I'll check it out again sometime.
– juanitogan
Mar 31 '17 at 1:23
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How to use the same C++ code for Android and iOS?
...tual Machine. So the only way to access C++ code is using JNI, please take time to read the basics of JNI. Fortunately, today's Android Studio IDE has vast improvements on JNI side, and a lot of problems are shown to you while you edit your code.
The code by steps
Our sample is a simple app that y...
How do CUDA blocks/warps/threads map onto CUDA cores?
...m different warps.
3'. A GTX560 can have 8 SM * 8 blocks = 64 blocks at a time or 8 SM * 48 warps = 512 warps if the kernel does not max out registers or shared memory. At any given time on a portion of the work will be active on SMs. Each SM has multiple execution units (more than CUDA cores). Whi...
Execution of Python code with -m option or not
...ain code that is invoked on their execution as a script. An example is the timeit module:
Some python code is intended to be run as a module: (I think this example is better than the commandline option doc example)
$ python -m timeit '"-".join(str(n) for n in range(100))'
10000 loops, best of 3: ...
C# Sortable collection which allows duplicate keys
... public int Compare(Curve c1, Curve c2)
{
return c2.CreationTime.CompareTo(c1.CreationTime);
}
}
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How do you log all events fired by an element in jQuery?
...s specific event gets fired. This code was pretty damn helpful for me many times.
Btw: If you want to see every possible event being fired on an object use firebug: just right click on the DOM element in html tab and check "Log Events". Every event then gets logged to the console (this is sometimes...
How to find if directory exists in Python
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@CamilStaps This question was viewed 354000 times (by now). Answers here are not only for OP, they are for anyone who could come here for whatever reason. aganders3's answer is pertinent even if it does not directly resolve OP's problem.
– Gabriel...
Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?
...ult to scale. More on this in Unobtrusive JavaScript.
You're spending your time writing incredibly overly verbose code - which has very little (if any) benefit to your codebase.
There are now better, easier, and more maintainable and scalable ways of accomplishing the desired result.
The unobtrusi...