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Rails: how do I validate that something is a boolean?
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This does not work, as any string eg, "foo" will be converted into true.
– Ka Mok
Jun 4 '18 at 22:55
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How to become an OpenCart guru? [closed]
...d be easy to understand if you're familiar with the extract() method which converts each key into a variable. So the example_var key becomes $example_var and can be accessed as such in the view.
Understanding themes
Themes are available to the catalog side only, and are basically a folder of tem...
Separating class code into a header and cpp file
... on how to separate implementation and declarations code of a simple class into a new header and cpp file. For example, how would I separate the code for the following class?
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Java: Equivalent of Python's range(int, int)?
Does Java have an equivalent to Python's range(int, int) method?
13 Answers
13
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Finding all possible combinations of numbers to reach a given sum
...heck if the partial sum is equals to target
if s == target:
print "sum(%s)=%s" % (partial, target)
if s >= target:
return # if we reach the number why bother to continue
for i in range(len(numbers)):
n = numbers[i]
remaining = numbers[i+1:]
s...
The maximum value for an int type in Go
How does one specify the maximum value representable for an unsigned integer type?
10 Answers
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Understanding typedefs for function pointers in C
...een a bit stumped when I read other peoples' code which had typedefs for pointers to functions with arguments. I recall that it took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on ...
Difference between `constexpr` and `const`
... for example, template parameters and array-size specifiers:
template<int N>
class fixed_size_list
{ /*...*/ };
fixed_size_list<X> mylist; // X must be an integer constant expression
int numbers[X]; // X must be an integer constant expression
But note:
Declaring somethin...
What's the best way to parse a JSON response from the requests library?
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response = requests.get(...)
json_data = json.loads(response.text)
This converts a given string into a dictionary which allows you to access your JSON data easily within your code.
Or you can use @Martijn's helpful suggestion, and the higher voted answer, response.json().
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what is the unsigned datatype?
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unsigned really is a shorthand for unsigned int, and so defined in standard C.
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