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check if variable is dataframe
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edited Jan 22 '19 at 8:01
cs95
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Regular expression: find spaces (tabs/space) but not newlines
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answered Aug 27 '10 at 10:03
LekensteynLekensteyn
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Git Ignores and Maven targets
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edited Jun 8 '12 at 3:09
user1411381
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answered Jun 14 '09 at 0:52
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Creating an instance of class
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Luchian GrigoreLuchian Grigore
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How to change MySQL column definition?
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e.g.
ALTER TABLE test MODIFY COLUMN locationExpect VARCHAR(120);
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Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
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(For information about the new exception helper in Visual Studio 2017 see the end of this answer)
Consider this code:
String s = null;
Console.WriteLine(s.Length);
This will throw a NullReferenceException in the second line and you want to know why .NET doesn't tell you that it was s ...
How to run a command before a Bash script exits?
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edited Aug 14 '19 at 19:50
030
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The term 'Get-ADUser' is not recognized as the name of a cmdlet
I have used the following query to list the users in a windows 2008 server, but failed and got the below error.
6 Answers
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round() doesn't seem to be rounding properly
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102
I can't help the way it's stored, but at least formatting works correctly:
'%.1f' % round(n, ...
What does Maven Update Project do in Eclipse?
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GimbyGimby
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