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What is the “Execute Around” idiom?
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//... chunk of identical cleanup/finishing code ...
//... and so on.
In order to avoid repeating all of this redundant code that is always executed "around" your actual tasks, you would create a class that takes care of it automatically:
//pseudo-code:
class DoTask()
{
do(task T)
{
...
how to convert java string to Date object [duplicate]
...it out at that point, you will get the standard date formatting output. In order to format it after that, you then need to convert it back to a date object with a specified format (already specified previously)
String startDateString = "06/27/2007";
DateFormat df = new SimpleDateFormat("MM/dd/yyyy"...
How do I iterate over an NSArray?
...re is one very interesting feature: concurrent enumeration. If enumeration order is not important and the jobs can be done in parallel without locking, this can provide a considerable speedup on a multi-core system. More about that in the concurrent enumeration section.
[myArray enumerateObjectsUsi...
How can I verify if one list is a subset of another?
...tion, however.
A list may contain items multiple times and has a specific order. A set does not. Additionally, sets only work on hashable objects.
Are you asking about subset or subsequence (which means you'll want a string search algorithm)? Will either of the lists be the same for many tests? W...
async await return Task
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In order to get proper responses back from async methods, you need to put await while calling those task methods. That will wait for converting it back to the returned value type rather task type.
E.g var content = await Str...
What Content-Type value should I send for my XML sitemap?
...s+xml or application/rdf+xml, the character encoding is determined in this order:
the encoding given in the charset parameter of the Content-Type HTTP header
the encoding given in the encoding attribute of the XML declaration within the document,
utf-8.
For text/xml, text/xml-external-parsed-ent...
Constructor function vs Factory functions
...e any additional readability. IMO, it seems silly to jump through hoops in order to enable callers to type more.
– Eric Elliott
Aug 27 '16 at 23:15
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How do I prevent the padding property from changing width or height in CSS?
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Add property:
-webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
-moz-box-sizing: border-box; /* Firefox, other Gecko */
box-sizing: border-box; /* Opera/IE 8+ */
Note: This won't work in Internet Explorer below version 8.
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What are the differences between Abstract Factory and Factory design patterns?
...o create objects in a class. It's usually added in the aggregate root (The Order class has a method called CreateOrderLine)
Abstract factory
In the example below we design an interface so that we can decouple queue creation from a messaging system and can therefore create implementations for dif...
Visual List of iOS Fonts?
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