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How to avoid annoying error “declared and not used”

... golint etc, and removes and adds import entries. So at least that part is now automatic. I will admit its not 100% of the solution to the question, but however useful enough. share | improve this ...
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Django South - table already exists

...re is more than one field missing you have to repeat it for each field. 3.Now you land with a bunch of new migrations so remove their files from myapp/migrations (0011 and further if you needed to add multiple fields). 4.Run this: ./manage.py migrate myapp 0010 Now try ./manage.py migrate myapp...
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Null coalescing in powershell

... evaluated Null Conditional Assignment $x = $null $x ??= 100 # $x is now 100 $x ??= 200 # $x remains 100 Ternary Operator $true ? "this value returned" : "this expression not evaluated" $false ? "this expression not evaluated" : "this value returned" Previous Versions: No need for ...
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How to dynamically create a class?

....DefineType call to include the static type as the last parameter (is null now) – danijels Oct 5 '10 at 9:49 2 ...
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Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x

...yper-V and Windows Hypervisor Platform options and restart your system. Now, you can Start HAXM installation without any error. share | improve this answer | follow ...
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How to unit test a Node.js module that requires other modules and how to mock the global require fun

... You can now! I published proxyquire which will take care of overriding the global require inside your module while you are testing it. This means you need no changes to your code in order to inject mocks for required modules. Prox...
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Getting realtime output using subprocess

...ut.readline() if not line: break ... does not. Apparently this is a known bug: http://bugs.python.org/issue3907 (The issue is now "Closed" as of Aug 29, 2018) share | improve this answer ...
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Does Python optimize tail recursion?

...ons. The clean way: modifying the Y combinator The Y combinator is well known; it allows to use lambda functions in a recursive manner, but it doesn't allow by itself to embed recursive calls in a loop. Lambda calculus alone can't do such a thing. A slight change in the Y combinator however can pr...
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Will the base class constructor be automatically called?

...tion and calls. In your Base class with a non-default constructor you must now either call that constructor explicitly from the derived class or add a default constructor explicitly in the base class. Let's test this..... // THIS WORKS!!! class MyBaseClass0 { // no default constructor - create...
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How can I get rid of an “unused variable” warning in Xcode?

... mark variable as used is… to use it. BOOL saved = ...; (void)saved; // now used You may be happy with already described compiler-specific extensions, though. share | improve this answer ...