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Javascript swap array elements
... variable: a = [b, b = a][0]; as pointed out by @Jan Although I still find myself utilizing the temporary variable approach as it's cross-language (e.g. C/C++) and the first approach that usually pops into my mind.
– Ultimater
Aug 15 '18 at 7:22
...
Deleting all files in a directory with Python
...a os.listdir and os.remove:
import os
filelist = [ f for f in os.listdir(mydir) if f.endswith(".bak") ]
for f in filelist:
os.remove(os.path.join(mydir, f))
Or via glob.glob:
import glob, os, os.path
filelist = glob.glob(os.path.join(mydir, "*.bak"))
for f in filelist:
os.remove(f)
B...
calling non-static method in static method in Java [duplicate]
...
@EJP For security purposes, and this is what I do with my project, in the case of dependency injection, it is useful to only have initialization code be instantiated for initialization, and not at the arbitrary discretion of code using my API. Thus, when an initialization cycle h...
Check if the number is integer
...ou are in the realm of machine dependent rounding errors. In that respect my solution is the same as the accepted one 1.0000000000000001 == 1L [1] TRUE. But my solution is better if you already get a number in string form check.integer("1000000000000000000000000000000000001") [1] TRUE
...
NOT using repository pattern, use the ORM as is (EF)
I always used Repository pattern but for my latest project I wanted to see if I could perfect the use of it and my implementation of “Unit Of Work”. The more I started digging I started asking myself the question: "Do I really need it?"
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What does “program to interfaces, not implementations” mean?
...ould use any class that implements IList interchangeably in your code:
// myList can be _any_ object that implements IList
public int GetListCount(IList myList)
{
// Do anything that IList supports
return myList.Count();
}
Another example from the Base Class Library (BCL) is the ProviderB...
Where can I find the Java SDK in Linux after installing it?
I installed JDK using apt-get install but I don't know where my jdk folder is. I need to set the path for that. Does any one have a clue on the location?
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Are there any suggestions for developing a C# coding standards / best practices document? [closed]
...
Ironically setting the actual standards are likely to be the easy part.
My first suggestion would be to elicit suggestions from the other engineers about what they feel should be covered, and what guidelines they feel are important. Enforcing any kind of guidelines requires a degree of buy-in fro...
How can I stop redis-server?
...otection, redis-cli set cat dog; redis-cli get cat changes to redis-cli -a mypassword set cat dog; redis-cli -a mypassword get cat, which can be annoying after a few commands.
– glarrain
Jul 17 '13 at 22:20
...
MySQL error 1449: The user specified as a definer does not exist
...ments
How to change the definer for stored procedures
Example:
UPDATE `mysql`.`proc` p SET definer = 'user@%' WHERE definer='root@%'
Be careful, because this will change all the definers for all databases.
2. Create the missing user
If you've found following error while using MySQL databa...