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Clojure: cons (seq) vs. conj (list)

... to conj(oin an item onto a collection). The seq being constructed by cons starts with the element passed as its first argument and has as its next / rest part the thing resulting from the application of seq to the second argument; as displayed above, the whole thing is of class clojure.lang.Cons. I...
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Transpose/Unzip Function (inverse of zip)?

...lgl: No,you're probably right. I was just hoping some future version might start doing the right thing. (It's not impossible to change, the side-effect semantics that need changes are probably already discouraged.) – Anders Eurenius Oct 15 '12 at 12:54 ...
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What is the best workaround for the WCF client `using` block issue?

... it seems to work great. This is how things should have been done from the start, without the "using" paradigm or so on. TReturn UseService<TChannel, TReturn>(Func<TChannel, TReturn> code) { var chanFactory = GetCachedFactory<TChannel>(); TChannel channel = chanFactory.Cre...
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Remove large .pack file created by git

...option is to save the code and .git somewhere and then delete the .git and start again using this existing code, creating a new git repository (git init). share | improve this answer | ...
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Is “double hashing” a password less secure than just hashing it once?

...cter. Instead, they use an ordered list of the most likely passwords. They start with "password123" and progress to less frequently used passwords. Let's say an attackers list is long, with 10 billion candidates; suppose also that a desktop system can compute 1 million hashes per second. The attac...
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Best way to reverse a string

...text) { Stopwatch sw = new Stopwatch(); sw.Start(); for (int j = 0; j < times; j++) { d(text); } sw.Stop(); Console.WriteLine("{0} Ticks {1} : called {2} times.", sw.ElapsedTicks, descripti...
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Significance of bool IsReusable in http handler interface

... Context switching is when a CPU stops processing on one thread and starts processing on another. I.E. the CPU switched it's context from one thread to another. This happens constantly in PCs, it gave us the illusion of multitasking before there were multicore computers. ...
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Removing duplicates from a list of lists

...ian, depending on one's apps), performing possibly-heuristic checks at the start to pick different algorithms depending on input data characteristics, and so forth. Careful measurements of "point" performance (code A vs code B for a specific input) are a part of this extremely costly process, and s...
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How do I set $PATH such that `ssh user@host command` works?

...ou're having has to do with the default Ubuntu ~/.bashrc file. It usually starts with something like this: # If not running interactively, don't do anything [ -z "$PS1" ] && return You want to put anything for non-interactive shells before this line. ...
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jquery find closest previous sibling with class

... Does this mean :first is working on a list of returned elements that starts closest to the selected object (as opposed to top to bottom relative to the page)? – NReilingh Mar 10 '13 at 0:41 ...