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Random string generation with upper case letters and digits
...hically more secure version; see https://stackoverflow.com/a/23728630/2213647:
''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(N))
In details, with a clean function for further reuse:
>>> import string
>>> import random
>>> d...
How to strip all non-alphabetic characters from string in SQL Server?
...@Temp
End
Call it like this:
Select dbo.RemoveNonAlphaCharacters('abc1234def5678ghi90jkl')
Once you understand the code, you should see that it is relatively simple to change it to remove other characters, too. You could even make this dynamic enough to pass in your search pattern.
Hope it he...
Remove local git tags that are no longer on the remote repository
...ags origin
That returns a list of hashes and friendly tag names, like:
94bf6de8315d9a7b22385e86e1f5add9183bcb3c refs/tags/v0.1.3
cc047da6604bdd9a0e5ecbba3375ba6f09eed09d refs/tags/v0.1.4
...
2f2e45bedf67dedb8d1dc0d02612345ee5c893f2 refs/tags/v0.5.4
You could certainly put t...
Maximum number of threads per process in Linux?
...t /proc/sys/kernel/threads-max
The default is the number of memory pages/4. You can increase this like:
echo 100000 > /proc/sys/kernel/threads-max
There is also a limit on the number of processes (and hence threads) that a single user may create, see ulimit/getrlimit for details regarding t...
When should we use intern method of String on String literals
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14 Answers
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What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
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answered Mar 4 '14 at 10:46
vefthymvefthym
6,93855 gold badges2626 silver badges5555 bronze badges
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How to return PDF to browser in MVC?
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edited Aug 29 '16 at 14:24
Tomas Kubes
18.7k1414 gold badges8585 silver badges122122 bronze badges
a...
Reflection: How to Invoke Method with parameters
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240
Change "methodInfo" to "classInstance", just like in the call with the null parameter array.
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Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
With the addition of the Tuple class in .net 4, I have been trying to decide if using them in my design is a bad choice or not. The way I see it, a Tuple can be a shortcut to writing a result class (I am sure there are other uses too).
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