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Why would iterating over a List be faster than indexing through it?

...nt head -> item1 -> print item1 -> item2 -> print item2 etc. all in a single traversal, which is O(N). Now, going to the other implementation of List which is ArrayList, that one is backed by a simple array. In that case both of the above traversals are equivalent, since an array is c...
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AngularJS performs an OPTIONS HTTP request for a cross-origin resource

...s-Origin Resource Sharing standard works by adding new HTTP headers that allow servers to describe the set of origins that are permitted to read that information using a web browser. Additionally, for HTTP request methods that can cause side-effects on user data (in particular; for HTTP meth...
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Passing arguments to “make run”

... What's a macro? Isn't that what people call environment variables? What's the difference between a macro and an environment variable? – KcFnMi Aug 12 at 23:05 ...
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Five equal columns in twitter bootstrap

...t; <div class="span2"></div> </div> Voila! Five equally spaced and centered columns. In bootstrap 3.0, this code would look like <div class="row"> <div class="col-md-2 col-md-offset-1"></div> <div class="col-md-2"></div> <div c...
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How many socket connections can a web server handle?

...am. Today, arbitrarily, let's say i7 (4 core) with 8GB of RAM. A good firewall/router to match. No virtual limit/governor - ie. Linux somaxconn, IIS web.config... No dependency on other slower hardware - no reading from harddisk, because it would be the lowest common denominator and bottleneck, not ...
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In Vim, how do I apply a macro to a set of lines?

...at performs an operation on a single line. I want to repeat that macro on all of the remaining lines in the file. Is there a quick way to do this? ...
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AngularJS best practices for module declaration?

I have a bunch of Angular modules declared in my app. I originally started declaring them using the "chained" syntax like this: ...
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Best way to get InnerXml of an XElement?

...(0.364) Method I used a single XML document with 20 identical nodes (called 'hint'): <hint> <strong>Thinking of using a fake address?</strong> <br /> Please don't. If we can't verify your address we might just have to reject your application. </hint> The...
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Browse orphaned commits in Git

...is open I think I'll give an answer to my own question. Using git reflog --all is a good way to browse orphaned commits - and using the SHA1 hashes from that you can reconstruct history. In my case though, the repository was corrupted so this didn't help; git fsck can help you find and sometimes fi...
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How do I seed a random class to avoid getting duplicate random values [duplicate]

... be far from uniform distribution. For the sake of completeness, if you really need to reseed a Random, you'll create a new instance of Random with the new seed: rnd = new Random(newSeed); share | ...