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Rounding float in Ruby
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Keep in mind that 2.3000.round(2) => 2.3 and sprintf '%.2f', 2.300 => 2.30. In my opinion this is a flaw in round(), or it should have an option to preserve trailing zeros.
– Excalibur
Feb 11 '14 at 17:06
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How to add jQuery in JS file
... is common in most pages I want to make a JS file which will have the code and all the pages using it can reference it from there.
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How can I quickly sum all numbers in a file?
I have a file which contains several thousand numbers, each on it's own line:
33 Answers
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When vectors are allocated, do they use memory on the heap or the stack?
... store.
vector<Type*> vect;
will allocate the vector on the stack and a bunch of pointers on the free store, but where these point is determined by how you use them (you could point element 0 to the free store and element 1 to the stack, say).
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What's the difference between QMainWindow, QWidget and QDialog?
What's the difference between QMainWindow, QWidget and QDialog?
2 Answers
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Aren't promises just callbacks?
I've been developing JavaScript for a few years and I don't understand the fuss about promises at all.
10 Answers
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detect key press in python?
I am making a stopwatch type program in python and I would like to know how to detect if a key is pressed (such as p for pause and s for stop), and I would not like it to be something like raw_input that waits for the user's input before continuing execution. Anyone know how to do this in a while lo...
Best way to initialize (empty) array in PHP
...o = [] rather than var foo = new Array() for reasons of object creation and instantiation. I wonder whether there are any equivalences in PHP?
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Java lib or app to convert CSV to XML file? [closed]
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Maybe this might help: JSefa
You can read CSV file with this tool and serialize it to XML.
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What does “Auto packing the repository for optimum performance” mean?
...I get this message: "Auto packing the repository for optimum performance", and it does not seem to go away and return the shell.
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