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Distributed sequence number generation?
...bers and unique IDs that are (optionally) loosely sortable by a specific criteria (typically generation time). True sequence numbers imply knowledge of what all other workers have done, and as such require shared state. There is no easy way of doing this in a distributed, high-scale manner. You coul...
Are 2^n and n*2^n in the same time complexity?
Resources I've found on time complexity are unclear about when it is okay to ignore terms in a time complexity equation, specifically with non-polynomial examples.
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How do I uniquely identify computers visiting my web site?
I need to figure out a way uniquely identify each computer which visits the web site I am creating. Does anybody have any advice on how to achieve this?
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How to speed up insertion performance in PostgreSQL
I am testing Postgres insertion performance. I have a table with one column with number as its data type. There is an index on it as well. I filled the database up using this query:
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Chai: how to test for undefined with 'should' syntax
Building on this tutorial testing an angularjs app with chai, I want to add a test for an undefined value using the "should" style. This fails:
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ASP.NET MVC partial views: input name prefixes
... helper.Partial(partialViewName, model, viewData);
}
and simply use it in your views like this :
<%= Html.PartialFor(model => model.Child, "_AnotherViewModelControl") %>
and you will see everything is ok!
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When would you use the Builder Pattern? [closed]
...e common , real world examples of using the Builder Pattern? What does it buy you? Why not just use a Factory Pattern?
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Locking a file in Python
I need to lock a file for writing in Python. It will be accessed from multiple Python processes at once. I have found some solutions online, but most fail for my purposes as they are often only Unix based or Windows based.
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Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
... Gmail three-fragment animation" scenario. Specifically, we want to start with two fragments, like this:
6 Answers
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How does the String class override the + operator?
Why in Java you're able to add Strings with the + operator, when String is a class? In the String.java code I did not find any implementation for this operator. Does this concept violate object orientation?
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