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Why does 1==1==1 return true, “1”==“1”==“1” return true, and “a...

... Because you are comparing the (boolean) result of the first equality with the (non-boolean) third value. In code, 1 == 1 == 1 is equivalent to (1 == 1) == 1 is equivalent to true == 1. This means the three methods can be written more simply as: function a() { return (true == 1); } funct...
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What's the difference between a method and a function?

... A function is a piece of code that is called by name. It can be passed data to operate on (i.e. the parameters) and can optionally return data (the return value). All data that is passed to a function is explicitly passed. A method is a piece of code that is called by a name th...
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Why should hash functions use a prime number modulus?

... ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math". ...
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Compiler Ambiguous invocation error - anonymous method and method group with Func or Action

...s is one of the hairiest parts of the spec, so good on Jon for diving into it head first. Second, let me say that this line: An implicit conversion exists from a method group to a compatible delegate type (emphasis added) is deeply misleading and unfortunate. I'll have a talk with Mads about...
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How to Implement Custom Table View Section Headers and Footers with Storyboard

Without using a storyboard we could simply drag a UIView onto the canvas, lay it out and then set it in the tableView:viewForHeaderInSection or tableView:viewForFooterInSection delegate methods. ...
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Can anyone explain CreatedAtRoute() to me?

...you invoke a POST method to store some new object. So if you POST an order item for instance, you might return a route like 'api/order/11' (11 being the id of the order obviously). BTW I agree that the MSDN article is of no use in understanding this. The route you actually return will naturally dep...
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multiprocessing: sharing a large read-only object between processes?

...ependent memory space. Solution 1 To make best use of a large structure with lots of workers, do this. Write each worker as a "filter" – reads intermediate results from stdin, does work, writes intermediate results on stdout. Connect all the workers as a pipeline: process1 <source | proces...
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Peak-finding algorithm for Python/SciPy

I can write something myself by finding zero-crossings of the first derivative or something, but it seems like a common-enough function to be included in standard libraries. Anyone know of one? ...
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Initializing a static std::map in C++

What is the right way of initializing a static map? Do we need a static function that will initialize it? 11 Answers ...
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How do I make jQuery wait for an Ajax call to finish before it returns?

...follow | edited Sep 15 at 11:10 mmv_sat 42177 silver badges1515 bronze badges answered Ap...