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String formatting: % vs. .format vs. string literal

...ated. And Python, not being a lazy language, evaluates expressions before calling functions, so in your log.debug example, the expression "some debug info: %s"%some_infowill first evaluate to, e.g. "some debug info: roflcopters are active", then that string will be passed to log.debug(). ...
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?

...ple in unit testing. However, in a loosely coupled application, by moving all the references to the Composition Root, the dependency graph is severely flattened: As illustrated by the green color, it's now possible to reuse Library C without dragging along any unwanted dependencies. However, al...
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What is the easiest way to remove the first character from a string?

... only does one and finishes. Consider gsub like it's a minimum of two sub calls. Also, it's important to remember that gsub, and sub can also be handicapped by poorly written regex which match much more slowly than a sub-string search. If possible anchor the regex to get the most speed from it. Th...
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Convert tuple to list and back

...t is the homogeneous multidimensional array. It is a table of elements (usually numbers), all of the same type, indexed by a tuple of positive integers. – pradyunsg Dec 4 '16 at 3:25 ...
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Regex Named Groups in Java

... Brian ClozelBrian Clozel 43k1111 gold badges115115 silver badges141141 bronze badges add a comment ...
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How to make a Java Generic method static?

...urn value always introduce (declare) a new generic type variable. Additionally, type variables between types (ArrayUtils) and static methods (appendToArray) never interfere with each other. So, what does this mean: In my answer <E> would hide the E from ArrayUtils<E> if the method woul...
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“Auto Layout still required after executing -layoutSubviews” with UITableViewCell subclass

... I encountered the same problem while manually adding constraints in code. In code, I was doing the following: { [self setTranslatesAutoresizingMaskIntoConstraints:YES]; [self addSubview:someView]; [self addSubview:someOtherView]; [self addConstraint...
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What is the difference between an interface and abstract class?

...'t do anything. It's just a pattern. For example (pseudo code): // I say all motor vehicles should look like this: interface MotorVehicle { void run(); int getFuel(); } // My team mate complies and writes vehicle looking that way class Car implements MotorVehicle { int fuel; vo...
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How do I delete an Azure storage account containing a leased blob?

...unt can be deleted. Notes: This applies even if you've already deleted all of your Virtual Machines and it shows 0; there still will be artifacts under the disks tab. Disks are detached from a deleted VM asynchronously, it may take a few minutes after the VM is deleted for this field to clear up...
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MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术

...{AFX_DATA_MAP(CPrintDlg) ""// NOTE: the ClassWizard will add DDX and DDV calls here "DDX_Control(pDX, IDC_MyButton, m_button); "//}}AFX_DATA_MAP 然后可以在该函数的最后进行初始化: "m_button.EnableWindow(FALSE); 到这里已经实现了改变属性。如果要动态改变其属...