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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

...able for all instances, the code this.permament will result in compilation errors because it can be recalled that this.variablename refers to the instance variable name. Thus, static variables are to be accessed directly, as indicated in the code. ...
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How do I automatically sort a has_many relationship in Rails?

...in the model? – Wit Jun 21 '17 at 8:05 @Wit - you can add .order() to the method chain, like in the last example. Is t...
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SVN Error - Not a working copy

...e. rm -rf content; svn checkout content). If you get a not a working copy error, it means that Subversion cannot find a proper .svn directory in there. Check to see if there is an .svn directory in contents The ideal solution is a fresh checkout, if possible. ...
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Are there any downsides to passing structs by value in C, rather than passing a pointer?

... Simple solution will be return an error code as a return value and everything else as a parameter in the function, This parameter can be a struct of course but don't see any particular advantage passing this by value, just sent a pointer. Passing structure by...
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How can I get dictionary key as variable directly in Python (not by searching from value)?

... answered Aug 23 '10 at 7:05 EscualoEscualo 35.2k1717 gold badges7878 silver badges121121 bronze badges ...
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Difference between assertEquals and assertSame in phpunit?

...e both sporadically, but according to the docs: assertSame Reports an error identified by $message if the two variables $expected and $actual do not have the same type and value." And as you can see in the example below the above excerpt, they are passing '2204' and 2204, which will fail usin...
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Convert floats to ints in Pandas?

... I tried your approach and it gives me a ValueError: Cannot convert NA to integer – MJP Jan 22 '14 at 18:50 6 ...
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How many parameters are too many? [closed]

... You can define as many parameters as you may need, but too many of them will make your routine difficult to understand and maintain. ...
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Entity Framework - Invalid Column Name '*_ID"

...t I didnt know it until after I figured my problem out). If you have some error related to OtherTable_ID when you are retrieving Table, go to your OtherTable model and make sure you don't have an ICollection<Table> in there. Without a relationship defined, the framework will auto-assume that...
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How do I capture the output into a variable from an external process in PowerShell?

...ut see caveats below): $cmdOutput = <command> 2>&1 # redirect error stream (2) to success stream (1) However, for external commands the following is more likely to work as expected: $cmdOutput = cmd /c <command> '2>&1' # Let cmd.exe handle redirection - see below. Consid...