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Why is setTimeout(fn, 0) sometimes useful?

...d - I just made it very detailed. UPDATE: I have made a JSFiddle to live-demonstrate the explanation below: http://jsfiddle.net/C2YBE/31/ . Many thanks to @ThangChung for helping to kickstart it. UPDATE2: Just in case JSFiddle web site dies, or deletes the code, I added the code to this answer at...
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How do I use Node.js Crypto to create a HMAC-SHA1 hash?

...out format: hmac.setEncoding('hex'); //or also commonly: hmac.setEncoding('base64'); // callback is attached as listener to stream's finish event: hmac.end(text, function () { hash = hmac.read(); //...do something with the hash... }); More formally, if you wish, the line hmac.end(text, f...
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Best practices for overriding isEqual: and hash

...me -hash value for every instance. Otherwise, yes, you must implement hash based only on objects which affect equality. This is tricky if you use lax comparisons in -isEqual: (e.g. case-insensitive string comparisons). For ints, you can generally use the int itself, unless you’ll be comparing with...
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Find running median from a stream of integers

...ails of the a specific solution (max heap/min heap solution), and how heap based solution works is explained below: For the first two elements add smaller one to the maxHeap on the left, and bigger one to the minHeap on the right. Then process stream data one by one, Step 1: Add next item to one ...
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Can anyone explain IEnumerable and IEnumerator to me? [closed]

...MUST start before the first passenger (at the front of everyone where they demo safety, how to put the life jacket on etc). He/she (i.e. the flight attendant) MUST "move next" up the aisle to the first seat. He/she is to then record: (i) who the person is in the seat, and (ii) their current location...
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How to avoid “too many parameters” problem in API design?

...Classes are grouped logically and that kind of contextualization cannot be based on quantities. However C#'s immutability support starts creating problems at a certain number of properties before we start violating good OO design principles. – Sedat Kapanoglu J...
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How can I filter a date of a DateTimeField in Django?

... Such lookups are implemented in django.views.generic.date_based as follows: {'date_time_field__range': (datetime.datetime.combine(date, datetime.time.min), datetime.datetime.combine(date, datetime.time.max))} Because it is quite verbose there are plan...
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How to sleep for five seconds in a batch file/cmd [duplicate]

... I'm fairly certain I've used it on Server 2003 (same code base as XP), so it's a wonder it's not on XP then... – asveikau Nov 4 '09 at 9:56 48 ...
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Android emulator freezing OS X v10.9 (Mavericks) with HAXM

...hough I could do with their VMs having root access so I can access the databases. On the plus side the VMs have full Google Play Services including the Play Store. – Pandalover Oct 17 '13 at 11:34 ...
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Why should I prefer to use member initialization lists?

... Initialization of base class One important reason for using constructor initializer list which is not mentioned in answers here is initialization of base class. As per the order of construction, base class should be constructed before child...