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How can I select the first day of a month in SQL?
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30 Answers
30
Active
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Why escape_javascript before rendering a partial?
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answered Oct 25 '09 at 6:22
Azeem.ButtAzeem.Butt
6,01111 gold badge2323 silver badges2323 bronze badges
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Create unique constraint with null columns
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edited Feb 21 '19 at 3:06
answered Nov 27 '11 at 21:34
E...
How to check if a variable is a dictionary in Python?
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300
You could use if type(ele) is dict or use isinstance(ele, dict) which would work if you had su...
How to specify function types for void (not Void) methods in Java8?
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edited Nov 6 '18 at 21:00
answered Jan 15 '13 at 13:01
E...
How to group dataframe rows into list in pandas groupby?
...'A','A','B','B','B','C'], 'b':[1,2,5,5,4,6]})
df
Out[1]:
a b
0 A 1
1 A 2
2 B 5
3 B 5
4 B 4
5 C 6
In [2]: df.groupby('a')['b'].apply(list)
Out[2]:
a
A [1, 2]
B [5, 5, 4]
C [6]
Name: b, dtype: object
In [3]: df1 = df.groupby('a')['b'].apply(list).reset_in...
Attach to a processes output for viewing
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answered Apr 3 '09 at 21:20
Don WerveDon Werve
4,98222 gold badges2323 silver badges3131 bronze badges
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Select elements by attribute
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190
Do you mean can you select them? If so, then yes:
$(":checkbox[myattr]")
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MD5 algorithm in Objective-C
... // This is the md5 call
return [NSString stringWithFormat:
@"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
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Coroutine vs Continuation vs Generator
...Do some more funky stuff
my_coro = make_coroutine(my_coroutine_body)
x = 0
while True:
# The coroutine does some funky stuff to x, and returns a new value.
x = my_coro(x)
print x
An example of where coroutines are used is lexers and parsers. Without coroutines in the language or emulate...