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How to convert ‘false’ to 0 and ‘true’ to 1 in Python
Is there a way to convert true of type unicode to 1 and false of type unicode to 0 (in Python)?
7 Answers
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How to COUNT rows within EntityFramework without loading contents?
...Anyway, in this case I only needed to know there were matching rows, but I intentionally asked the question more generally.
– NVRAM
May 22 '09 at 17:38
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byte[] to hex string [duplicate]
How do I convert a byte[] to a string ? Every time I attempt it, I get
19 Answers
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Why does Decimal.Divide(int, int) work, but not (int / int)?
...tional part. By invoking Decimal.Divide, your int arguments get implicitly converted to Decimals.
You can enforce non-integer division on int arguments by explicitly casting at least one of the arguments to a floating-point type, e.g.:
int a = 42;
int b = 23;
double result = (double)a / b;
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How to convert DateTime to VarChar
I am working on a query in Sql Server 2005 where I need to convert a value in DateTime variable into a varchar variable in yyyy-mm-dd format (without time part). How do I do that?
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How to convert JSON string to array
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Use json_decode($json_string, TRUE) function to convert the JSON object to an array.
Example:
$json_string = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
$my_array_data = json_decode($json_string, TRUE);
NOTE: The second parameter will convert decoded JSON string into an as...
What does the explicit keyword mean?
...that the compiler can use constructors callable with a single parameter to convert from one type to another in order to get the right type for a parameter.
Here's an example class with a constructor that can be used for implicit conversions:
class Foo
{
public:
// single parameter constructor, can...
Problem with converting int to string in Linq to entities
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With EF v4 you can use SqlFunctions.StringConvert. There is no overload for int so you need to cast to a double or a decimal. Your code ends up looking like this:
var items = from c in contacts
select new ListItem
{
Value = ...
How to read a large file - line by line?
...Processes=32 --balanceFactor=2
2367496
real 0m8.920s
user 1m30.056s
sys 2m38.744s
In [1]: 40412077758. / 8.92
Out[1]: 4530501990.807175
That’s some 4.5 GB/s, or 45 Gb/s, file slurping speed. That ain’t no spinning hard disk, my friend. That’s actually a Samsung Pro 950 SSD.
Below ...
What's the most efficient way to erase duplicates and sort a vector?
..., vec.end() );
vec.erase( unique( vec.begin(), vec.end() ), vec.end() );
Convert to set (manually)
set<int> s;
unsigned size = vec.size();
for( unsigned i = 0; i < size; ++i ) s.insert( vec[i] );
vec.assign( s.begin(), s.end() );
Convert to set (using a constructor)
set<int> s( ...