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Python `if x is not None` or `if not x is None`?
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1029
There's no performance difference, as they compile to the same bytecode:
Python 2.6.2 (r262:...
How does HashSet compare elements for equality?
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138
It uses an IEqualityComparer<T> (EqualityComparer<T>.Default unless you specify a ...
Convert pandas dataframe to NumPy array
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15 Answers
15
Active
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How do android screen coordinates work?
...pSize.y;
EDIT:- ** **for devices supporting android api level older than 13. Can use below code.
Display mdisp = getWindowManager().getDefaultDisplay();
int maxX= mdisp.getWidth();
int maxY= mdisp.getHeight();
(x,y) :-
1) (0,0) is top left corner.
2) (maxX,0) is top right corner
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Bash: If/Else statement in one line
...e it is called some_process ) is running on a server. If it is, then echo 1, otherwise echo 0.
5 Answers
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How to merge a list of lists with same type of items to a single list of items?
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JaredParJaredPar
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Get application version name using adb
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185
adb shell dumpsys package my.package | grep versionName
as mentioned by @david and @Jeremy F...
What do hjust and vjust do when making a plot using ggplot?
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The value of hjust and vjust are only defined between 0 and 1:
0 means left-justified
1 means right-justified
Source: ggplot2, Hadley Wickham, page 196
(Yes, I know that in most cases you can use it beyond this range, but don't expect it to behave in any specific way. This is ou...
Following git-flow how should you handle a hotfix of an earlier release?
...:
git checkout 6.0
git checkout -b support/6.x
git checkout -b hotfix/6.0.1
... make your fix, then:
git checkout support/6.x
git merge hotfix/6.0.1
git branch -d hotfix/6.0.1
git tag 6.0.1
or using git flow commands
git flow support start 6.x 6.0
git flow hotfix start 6.0.1 support/6.x
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java: (String[])List.toArray() gives ClassCastException
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251
This is because when you use
toArray()
it returns an Object[], which can't be cast to a Str...