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Matrix Transpose in Python
...g'), ('b', 'e', 'h'), ('c', 'f', 'i')]?
– acollection_
Feb 28 '16 at 3:15
14
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Best way to select random rows PostgreSQL
...ery:
SELECT count(*) AS ct -- optional
, min(id) AS min_id
, max(id) AS max_id
, max(id) - min(id) AS id_span
FROM big;
The only possibly expensive part is the count(*) (for huge tables). Given above specifications, you don't need it. An estimate will do just fine,...
Printing a variable memory address in swift
... var aString : String = "THIS IS A STRING"
NSLog("%p", aString.core._baseAddress) // _baseAddress is a COpaquePointer
// example printed address 0x100006db0
This prints the memory address of the string, if you open XCode -> Debug Workflow -> View Memory and go to the printed addre...
How can I expand the full path of the current file to pass to a command in Vim?
... Umber FerruleUmber Ferrule
3,24666 gold badges3232 silver badges3838 bronze badges
5
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Conversion failed when converting date and/or time from character string while inserting datetime
... |
edited Nov 2 '15 at 18:32
B. Clay Shannon
18.9k116116 gold badges368368 silver badges718718 bronze badges
...
Enum type constraints in C# [duplicate]
...: {3} ", IO.FileAccess.ReadWrite, IO.FileAccess.Read, IO.FileAccess.Write, _
Enums.HasFlags(IO.FileAccess.ReadWrite, IO.FileAccess.Read Or IO.FileAccess.Write))
' These fail to compile as expected:
'Console.WriteLine(Enums.HasFlags(IO.FileAccess.ReadWrite, IO.FileOptio...
How do I get a file extension in PHP?
... Sayed Mohd Ali
1,97833 gold badges77 silver badges2323 bronze badges
answered Oct 6 '08 at 11:03
e-satise-satis
492k103103 gold b...
Converting a string to a date in JavaScript
...
function stringToDate(_date,_format,_delimiter)
{
var formatLowerCase=_format.toLowerCase();
var formatItems=formatLowerCase.split(_delimiter);
var dateItems=_date.split(_delimiter);
var monthIndex=f...
Is there a max array length limit in C++?
...re support in the integer math unit. On every x86 OS I've used, size_t is 32-bits for a 32-bit OS and 64-bits for a 64-bit OS.
– Mr Fooz
Dec 18 '09 at 22:36
2
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event Action vs event EventHandler
...ardArgs("Fred"));
//Console.WriteLine($"{HeightSensorTypes.Keyence_IL030}:{(int)HeightSensorTypes.Keyence_IL030}");
Console.ReadLine();
}
private static void SomeSimpleEvent1(int num)
{
Console.WriteLine($"{nameof(SomeSimpleEvent1)}:{num}");
}
private st...