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Get value from JToken that may not exist (best practices)
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214
This is pretty much what the generic method Value() is for. You get exactly the behavior you w...
Insert a row to pandas dataframe
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Just assign row to a particular index, using loc:
df.loc[-1] = [2, 3, 4] # adding a row
df.index = df.index + 1 # shifting index
df = df.sort_index() # sorting by index
And you get, as desired:
A B C
0 2 3 4
1 5 6 7
2 7 8 9
See in Pandas documentation Indexing: Se...
throw checked Exceptions from mocks with Mockito
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235
Check the Java API for List.
The get(int index) method is declared to throw only the IndexOutO...
Transparent ARGB hex value
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205
Transparency is controlled by the alpha channel (AA in #AARRGGBB). Maximal value (255 dec, FF ...
sed error: “invalid reference \1 on `s' command's RHS”
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Don't you need to actually capture for that to work? i.e. for variant 2:
-r -e "s/WARNING: (\([a-zA-Z0-9./\\ :-]\+\))/${warn}WARNING: \1${c_end}/g" \
(Note: untested)
Without the -r argument back-references (like \1) won't work.
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Using bitwise OR 0 to floor a number
...wise operations except unsigned right shift, >>>, work on signed 32-bit integers. So using bitwise operations will convert a float to an integer.
Does it have any advantages over doing Math.floor? Maybe it's a bit
faster? (pun not intended)
http://jsperf.com/or-vs-floor/2 seems slig...
RuntimeError on windows trying python multiprocessing
...lelTestModule.ParallelExtractor()
extractor.runInParallel(numProcesses=2, numThreads=4)
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visual c++: #include files from other projects in the same solution
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201
Settings for compiler
In the project where you want to #include the header file from another ...
What is the difference between “int” and “uint” / “long” and “ulong”?
I know about int and long (32-bit and 64-bit numbers), but what are uint and ulong ?
5 Answers
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