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Are HTTP headers case-sensitive?
... Continued citation from HTTP/2 RFC: "However, header field names MUST be converted to lowercase prior to their encoding in HTTP/2. A request or response containing uppercase header field names MUST be treated as malformed (Section 8.1.2.6)"
– Borek Bernard
Se...
Split (explode) pandas dataframe string entry to separate rows
... ZZ
6 x 2 ZZ
7 y 2 ZZ
using this little trick we can convert CSV-like column to list column:
In [48]: df.assign(var1=df.var1.str.split(','))
Out[48]:
var1 var2 var3
0 [a, b, c] 1 XX
1 [d, e, f, x, y] 2 ZZ
UPDATE: generic vectorized approa...
How to group time by hour or by 10 minutes
...
@Keelan Doesn't work for me - however CONVERT(date, DT.[Date]) does.
– Dan Parsonson
Feb 6 '18 at 15:16
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What is the difference between JavaConverters and JavaConversions in Scala?
...collection , there are two very similar objects JavaConversions and JavaConverters .
4 Answers
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python pandas: apply a function with arguments to a series
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Series.apply(func, convert_dtype=True, args=(), **kwds)
args : tuple
x = my_series.apply(my_function, args = (arg1,))
share
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improve this ...
SQL server query to get the list of columns in a table along with Data types, NOT NULL, and PRIMARY
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CASE WHEN c.max_length=-1 THEN 'MAX'
ELSE CONVERT(VARCHAR(4),
CASE WHEN t.name IN ('nchar','nvarchar')
THEN c.max_length/2 ELSE c.max_length END )
END +')'
WHEN t.name IN (...
Can't seem to discard changes in Git
...then this is the problem you are seeing.
core.autocrlf
If true, makes git convert CRLF at the end of lines in text files to LF
when reading from the filesystem, and
convert in reverse when writing to the
filesystem. The variable can be set to
input, in which case the conversion
happens only while r...
Replace a value in a data frame based on a conditional (`if`) statement
...
Easier to convert nm to characters and then make the change:
junk$nm <- as.character(junk$nm)
junk$nm[junk$nm == "B"] <- "b"
EDIT: And if indeed you need to maintain nm as factors, add this in the end:
junk$nm <- as.factor...
case-insensitive list sorting, without lowercasing the result?
...to match the lowercase 'b' when using casefold. This always happens if you convert case in order to compare: sorted(spam, key=str.lower) or sorted(spam, key=str.upper) or sorted(spam, key=str.casefold).
– PJ Singh
Jun 29 at 6:47
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Hidden features of Ruby
...
Another tiny feature - convert a Fixnum into any base up to 36:
>> 1234567890.to_s(2)
=> "1001001100101100000001011010010"
>> 1234567890.to_s(8)
=> "11145401322"
>> 1234567890.to_s(16)
=> "499602d2"
>> 123456789...