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Create an empty data.frame
...ying to initialize a data.frame without any rows. Basically, I want to specify the data types for each column and name them, but not have any rows created as a result.
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Python Write bytes to file
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If you want to write bytes then you should open the file in binary mode.
f = open('/tmp/output', 'wb')
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How can I provide multiple conditions for data trigger in WPF?
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@jasonk - Not sure if you can do that with a MultiTrigger. You can define two triggers for that..
– Gishu
Jun 29 '10 at 5:40
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How can I import Swift code to Objective-C?
I have written a library in Swift and I wasn't able to import it to my current project, written in Objective-C.
15 Answers
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Making your .NET language step correctly in the debugger
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I am an engineer on the Visual Studio Debugger team.
Correct me if I am wrong, but it sounds like the only issue left is that when switching from PDBs to the .NET 4 dynamic compile symbol format some breakpoints are being missed.
We would probably need a repro to exactly diagnose the iss...
get the latest fragment in backstack
How can I get the latest fragment instance added in backstack (if I do not know the fragment tag & id)?
17 Answers
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Performing user authentication in Java EE / JSF using j_security_check
...rding user authentication for a web application making use of JSF 2.0 (and if any components do exist) and Java EE 6 core mechanisms (login/check permissions/logouts) with user information hold in a JPA entity. The Oracle Java EE tutorial is a bit sparse on this (only handles servlets).
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release Selenium chromedriver.exe from memory
... off
rem just kills stray local chromedriver.exe instances.
rem useful if you are trying to clean your project, and your ide is complaining.
taskkill /im chromedriver.exe /f
Since chromedriver.exe is not a huge program and does not consume much memory, you shouldn't have to run this every tim...
How accurately should I store latitude and longitude?
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If these are at the equator does that mean that these are worst case errors?
– Liath
Jan 15 '14 at 9:02
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How to merge lists into a list of tuples?
...generator that will be exhausted after using it once. Save into a variable if you want to use it more often
– Hakaishin
Sep 25 '18 at 13:34
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