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How can I get the intersection, union, and subset of arrays in Ruby?
I want to create different methods for a class called Multiset .
3 Answers
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Difference between setUp() and setUpBeforeClass()
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So let's assume you had three tests in your class, the order of method calls would be:
setUpBeforeClass()
(Test class first instance constructed and the following methods called on it)
setUp()
test1()
tearDown()
(Test class second instance constructed and the following methods ...
Access to Modified Closure (2)
...Access to Modified Closure . I just want to verify if the following is actually safe enough for production use.
1 Answer
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What is the meaning of id?
... but those objects must respond to retain and release.
The compiler is totally happy for you to implicitly cast any object to id, and for you to cast id to any object. This is unlike any other implicit casting in Objective-C, and is the basis for most container types in Cocoa.
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How to check if a given directory exists in Ruby
I am trying to write a script which automatically checks out or updates a Subversion URL based on whether a specified directory exists or not.
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How can I make Visual Studio's build be very verbose?
...ld with the solution or project filename as cli argument does show the cl call with its arguments.
– Emile Vrijdags
Jul 10 '18 at 9:50
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How can I check if a URL exists via PHP?
...side.
Waiting for a response might take time and block code execution.
Not all headers returned by get_headers() are well formed.
Use curl (if you can).
Prevent fetching the entire body/content, but only request the headers.
Consider redirecting urls:
Do you want the first code returned?
Or follow a...
How to implement __iter__(self) for a container object (Python)
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I normally would use a generator function. Each time you use a yield statement, it will add an item to the sequence.
The following will create an iterator that yields five, and then every item in some_list.
def __iter__(self):
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Can I initialize a C# attribute with an array or other variable number of arguments?
...e of any attribute is supported (either the first or last wins, I can't recall which).
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Single Page Application: advantages and disadvantages [closed]
...pages.
The number of pages user downloads during visit to my web site?? really how many mails some reads when he/she opens his/her mail account. I read >50 at one go. now the structure of the mails is almost the same. if you will use a server side rendering scheme the server would then render it...