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Compiling with g++ using multiple cores
...nstances of itself in order to compile large projects quicker (for example 4 source files at a time for a multi-core CPU)?
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MySQL with Node.js
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427
Check out the node.js module list
node-mysql — A node.js module implementing the MySQL pro...
Difference between JSON.stringify and JSON.parse
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edited Jul 14 '19 at 4:16
user1063287
7,6641818 gold badges8686 silver badges165165 bronze badges
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MongoDB logging all queries
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You can log all queries:
$ mongo
MongoDB shell version: 2.4.9
connecting to: test
> use myDb
switched to db myDb
> db.getProfilingLevel()
0
> db.setProfilingLevel(2)
{ "was" : 0, "slowms" : 1, "ok" : 1 }
> db.getProfilingLevel()
2
> db.system.profile.find().pretty()
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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...
How to remove an element slowly with jQuery?
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halflings
1,47911 gold badge1313 silver badges3333 bronze badges
answered Nov 27 '09 at 7:09
GregGreg
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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...
Difference between Math.Floor() and Math.Truncate()
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492
Math.Floor rounds down, Math.Ceiling rounds up, and Math.Truncate rounds towards zero. Thus, M...
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...
Difference between BYTE and CHAR in column datatypes
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