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Fastest Way to Find Distance Between Two Lat/Long Points
... -10 units).
Actually, you only need two points, top left and bottom right call them (X1, Y1) and (X2, Y2)
Now your SQL statement use these points to exclude rows that definitely are more than 10u from your given point, it can use indexes on the latitudes & longitudes, so will be orders of magn...
Why should a function have only one exit-point? [closed]
...point" lies in understanding that what matters is that for each particular call to a normal function, the exit point is the point immediately after the call. Programmers nowadays take that for granted, but things were not always thus. In some rare cases code may have to get by without stack space,...
Python dictionary: are keys() and values() always the same order?
...re always a 1-to-1 mapping (assuming the dictionary is not altered between calling the 2 methods).
8 Answers
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What are .a and .so files?
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Archive libraries (.a) are statically linked i.e when you compile your program with -c option in gcc. So, if there's any change in library, you need to compile and build your code again.
The advantage of .so (shared object) over .a library is that they ar...
Is JavaScript an untyped language?
I've found that some people call JavaScript a "dynamically, weakly typed" language, but some even say "untyped"? Which is it really?
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Why have header files and .cpp files? [closed]
... need. As long as the CPP "includes" the HPP, the precompiler will automatically do the copy-paste of the contents of the HPP file into the CPP file. I updated the answer to clarify that.
– paercebal
Jun 18 '12 at 8:47
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How to process POST data in Node.js?
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You could also use the readablecallback instead of building the data into a body string. Once it is fired, the body is available through request.read();
– Thomas Fankhauser
Jun 26 '13 at 11:25
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Type List vs type ArrayList in Java [duplicate]
...ntations of the List interface can be swapped. It seems that (1) is typically used in an application regardless of need (myself I always use this).
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How to fully clean bin and obj folders within Visual Studio?
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Not sure how to activate/call this target. Just choosing 'Clean' does not appear to do anything. So how do I use it?
– aliceraunsbaek
Jan 27 '14 at 13:28
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How to force a WPF binding to refresh?
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if you use mvvm and your itemssource is located in your vm. just call INotifyPropertyChanged for your collection property when you want to refresh.
OnPropertyChanged("YourCollectionProperty");
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