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Is there a way to check if a file is in use?
...haracters than try {} finally { obj.Dispose() }. You'll also find that you now need to declare your object reference outside the using statement, which is more typing. If you have a explicit interface you'd also have to cast. Finally you want to dispose ASAP, and the finally logic may have UI or an...
How does this CSS produce a circle?
...at WD hasn't been updated in 6 years, I suspect a lot of it will be. I do know that section 11 (overflow family of properties) now lives in its own module, css-overflow-3, but that hasn't been reflected in the ED yet. You'll see plenty of issues in the ED, but I imagine it isn't an exhaustive list: ...
How to replace a character with a newline in Emacs?
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It's really a good idea for the characters which I don't know the key bind.
– Lei
Mar 5 '09 at 18:16
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Create an index on a huge MySQL production table without table locking
...ating MySQL's Schema without downtime
Thusfar, there's only one method I know of to update a MySql schema and not suffer an availability outage. Circular masters:
Master A has your MySQL database running on it
Bring Master B into service and have it replicate writes from Master A ( B is a slave ...
Strengths of Shell Scripting compared to Python [closed]
...nd was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
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What is the most compatible way to install python modules on a Mac?
...d and there are some details not covered in other answers:
Most people I know use HomeBrew or MacPorts, I prefer MacPorts because of its clean cut of what is a default Mac OS X environment and my development setup. Just move out your /opt folder and test your packages with a normal user Python envi...
Apache Spark: The number of cores vs. the number of executors
...son, but we still see a similar drop in performance when we lose threads.
Now for the last bit: why is it the case that we get better performance with more threads, esp. more threads than the number of CPUs?
A good explanation of the difference between parallelism (what we get by dividing up data ...
What's the best way to refactor a method that has too many (6+) parameters?
...sn't get you much; the goal is to have groupings that make sense. You'll know you got it right when the name of the new type is obvious.
Look for other places where these values are used together, and use the new type there, too. Chances are, when you've found a good new type for a set of values t...
Set icon for Android application
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It's simple.
Now simply go to menu File → New → Image Asset. This will open a new dialogue and then make sure Launcher Icons is selected (Which it is by default) and then browse to the directory of your icon (it doesn't have to be in ...
GroupBy pandas DataFrame and select most common value
I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination.
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