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What would cause an algorithm to have O(log n) complexity?
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I have to agree that it's pretty weird the first time you see an O(log n) algorithm... where on earth does that logarithm come from? However, it turns out that there's several different ways that you can get a log term to show up i...
Why use double indirection? or Why use pointers to pointers?
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If you want to have a list of characters (a word), you can use char *word
If you want a list of words (a sentence), you can use char **sentence
If you want a list of sentences (a monologue), you can use char ***monologue
If you want a...
What is the JavaScript convention for no operation?
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To answer the original question, the most elegant and neat implementation of a noop function in pure Javascript (as is also discussed here) is Function.prototype. This is because:
Function.prototype is a function:
ty...
Error 5 : Access Denied when starting windows service
I'm getting this error when I try to start a windows service I've created in C#:
31 Answers
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Linking R and Julia?
... R in terms of overall statistics workflow for some time yet. So I'd like to use it where C++ is mainly used in R programs: to optimize slow portions of code. Before I invest the time in learning Julia, though, I am curious what facilities there are for embedding Julia snippets in R code.
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When should I use “this” in a class?
I know that this refers to a current object. But I do not know when I really need to use it. For example, will be there any difference if I use x instead of this.x in some of the methods? May be x will refer to a variable which is local for the considered method? I mean variable which is see...
Rails respond_with: how does it work?
...the respond_with method is in Rails 3. But I can't even find a reference to it in either the Rails APIs or by searching the source. Can anyone either explain to me how it works (what options you can use, etc) or point me to the place it's actually implemented so I can peruse the code on my own?
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RegEx for matching UK Postcodes
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Might be a good idea to bring the actual regex to the answer, since pages seem to expire every year...
– pauloya
Nov 21 '12 at 17:03
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How to convert an array into an object using stdClass() [duplicate]
...enume' => 'Mihai', 'sex' => 'm', 'varsta' => 25)
);
If you want to see is this stdClass object just call this
print_r($clasa);
If you want to convert an array to object code will be
$arr = array('a'=>'apple','b'=>'ball');
$arr = (object) $arr;
You don't need to use stdClass. ...
How to convert a Java 8 Stream to an Array?
What is the easiest/shortest way to convert a Java 8 Stream into an array?
10 Answers
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