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Convert a float64 to an int in Go

... Such casts have a problem in Go that can be unexpected (at least if you come from Java): "In all non-constant conversions involving floating-point or complex values, if the result type cannot represent the value the conversion succeeds but the result value is implementation-dependent." (golang.or...
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What are major differences between C# and Java?

... Comparing Java 7 and C# 3 (Some features of Java 7 aren't mentioned here, but the using statement advantage of all versions of C# over Java 1-6 has been removed.) Not all of your summary is correct: In Java methods are vi...
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How can I configure NetBeans to insert tabs instead of a bunch of spaces?

...d "Tab Size". Additionally, you can check all the items in the Language combo and make sure they all use the general setting. You can also change it in a per-project fashion. Right click on the project icon, select Properties and review the Formatting category. These menu items remain valid...
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Getting exact error type in from DbValidationException

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Add column with number of days between dates in DataFrame pandas

... to expand on @AndyHayden comment, that works but it should pd.offsets.Day(1) (with an 's'). I also usually negate it, so you get (df['A'] - df['B']) / pd.offsets.Day(-1) – dirkjot Oct 14 '15 at 18:54 ...
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Oracle “(+)” Operator

...e specific notation for an OUTER JOIN, because the ANSI-89 format (using a comma in the FROM clause to separate table references) didn't standardize OUTER joins. The query would be re-written in ANSI-92 syntax as: SELECT ... FROM a LEFT JOIN b ON b.id = a.id This link is pretty good at e...
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What are the most-used vim commands/keypresses?

... Here's a tip sheet I wrote up once, with the commands I actually use regularly: References vim documentation online advanced vim tips more useful tips and graphical cheat sheet General Nearly all commands can be preceded by a number for a repeat count. eg. 5dd de...
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What is ApplicationException for in .NET?

... According to the remarks in msdn: User applications, not the common language runtime, throw custom exceptions derived from the ApplicationException class. The ApplicationException class differentiates between exceptions defined by applications versus exceptions defined by the system. I...
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What is the difference (if any) between Html.Partial(view, model) and Html.RenderPartial(view,model)

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How to redirect stderr and stdout to different files in the same line in script?

... Just add them in one line command 2>> error 1>> output However, note that >> is for appending if the file already has data. Whereas, > will overwrite any existing data in the file. So, command 2> error 1> output if you do ...