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Big O of JavaScript arrays

...pending - Amortized O(1) (sometimes resizing the hashtable is required; usually only insertion is required) Prepending - O(n) via unshift, since it requires reassigning all the indexes Insertion - Amortized O(1) if the value does not exist. O(n) if you want to shift existing values (Eg, using splice...
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how to use “AND”, “OR” for RewriteCond on Apache?

... is the actual implementation where you'll find the loop that goes through all the RewriteConditions a RewriteRule has, and what it basically does is (stripped, comments added for clarity): # loop through all Conditions that precede this Rule for (i = 0; i < rewriteconds->nelts; ++i) { re...
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Finalize vs Dispose

...difference between Dispose and Finalize (btw the Finalize method is still called a destructor in the language specification), so I'll just add a little about the scenarios where the Finalize method comes in handy. Some types encapsulate disposable resources in a manner where it is easy to use and d...
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how does multiplication differ for NumPy Matrix vs Array classes?

... and b) there's additional overhead compared to a "normal" numpy array. If all you're doing is linear algebra, then by all means, feel free to use the matrix class... Personally I find it more trouble than it's worth, though. For arrays (prior to Python 3.5), use dot instead of matrixmultiply. E.g...
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Any reason to write the “private” keyword in C#?

... the defaults, as per your question (I've never liked this argument, personally, but I figured it's worth mentioning) It gives an impression that you've deliberately decided to make it private, rather than just gone with the defaults. As for your last part: Moreover is there a case where writi...
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xcodebuild says does not contain scheme

...lt behavior of Schemes is to keep schemes 'private' until they are specifically marked as shared. In the case of a command-line initiated build, the Xcode UI never runs and the xcoderun tool doesn't have its own cache of Schemes to work with. The goal is to generate, share, and commit the scheme y...
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Is there any use for unique_ptr with array?

... Some people do not have the luxury of using std::vector, even with allocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector or ...
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How do you specify a different port number in SQL Management Studio?

... @mark Agreed, but it should be no surprise really - this is the same company that ignored the rest of the world and decided to use backslashes in file paths. sigh – Scott Jan 9 '13 at 15:31 ...
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What's the difference between ISO 8601 and RFC 3339 Date Formats?

...the web. Should I use one over the other? Is one just an extension? Do I really need to care that bad? 3 Answers ...
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Core pool size vs maximum pool size in ThreadPoolExecutor

...When the queue is full new threads will be created up to maxPoolSize. Once all the threads are in use and the queue is full tasks will be rejected. As the queue reduces, so does the number of active threads. share ...