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Which is better, number(x) or parseFloat(x)?
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318
The difference between parseFloat and Number
parseFloat/parseInt is for parsing a string, whil...
How can I remove a flag in C?
... the flag you want to unset. A Bitwise NOT inverts every bit (i.e. 0 => 1, 1 => 0).
flags = flags & ~MASK; or flags &= ~MASK;.
Long Answer
ENABLE_WALK = 0 // 00000000
ENABLE_RUN = 1 // 00000001
ENABLE_SHOOT = 2 // 00000010
ENABLE_SHOOTRUN = 3 // 00000011
value = ENABL...
Reload django object from database
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As of Django 1.8 refreshing objects is built in. Link to docs.
def test_update_result(self):
obj = MyModel.objects.create(val=1)
MyModel.objects.filter(pk=obj.pk).update(val=F('val') + 1)
# At this point obj.val is still 1, b...
How to find duplicates in 2 columns not 1
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194
You should set up a composite key between the two fields. This will require a unique stone_id...
How can I see the current value of my $PATH variable on OS X?
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145
You need to use the command echo $PATH to display the PATH variable or you can just execute se...
ruby convert array into function arguments
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104
You can turn an Array into an argument list with the * (or "splat") operator:
a = [0, 1, 2, 3...
How exactly does a generator comprehension work?
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147
Do you understand list comprehensions? If so, a generator expression is like a list comprehens...
split string in to 2 based on last occurrence of a separator
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120
Use rpartition(s). It does exactly that.
You can also use rsplit(s, 1).
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Javascript: Round up to the next multiple of 5
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edited Sep 23 '13 at 7:32
answered Sep 23 '13 at 7:03
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Enable 'xp_cmdshell' SQL Server
... of the xp_cmdshell MSDN docs:
http://msdn.microsoft.com/en-us/library/ms190693.aspx:
-- To allow advanced options to be changed.
EXEC sp_configure 'show advanced options', 1
GO
-- To update the currently configured value for advanced options.
RECONFIGURE
GO
-- To enable the feature.
EXEC sp_conf...