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Python - Create a list with initial capacity
...ook 118.00003051757812 ms
prealloc_array_by_extending took 102.99992561340332 ms
prealloc_array took 3.000020980834961 ms
prealloc_array took 49.00002479553223 ms
prealloc_array took 316.9999122619629 ms
prealloc_array took 473.00004959106445 ms
prealloc_array took 1677.9999732971191 ms
prealloc_arr...
SQL Server: Query fast, but slow from procedure
...ript of the slow and fast versions of the stored procedure:
dbo.ViewOpener__RenamedForCruachan__Slow.PRC
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS OFF
GO
CREATE PROCEDURE dbo.ViewOpener_RenamedForCruachan_Slow
@SessionGUID uniqueidentifier
AS
SELECT *
FROM Report_Opener_RenamedForCruacha...
How to play audio?
...
@user3293156 This method supports the same formats as HTML5’s <audio>. Wikipedia has a audio format compatibility table. new Audio() can play WAV files in all browsers except Internet Explorer.
– Rory...
Unique Constraint in Entity Framework Code First
...10/03/…
– Nathan
Jan 15 '14 at 16:32
3
...
Does C have a “foreach” loop construct?
...ing cleverness to it. Kernighan's aphorism (stackoverflow.com/questions/1103299/…) applies!
– Donal Fellows
Jul 22 '10 at 23:25
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Create a temporary table in a SELECT statement without a separate CREATE TABLE
...x to your temporary table do:
CREATE TEMPORARY TABLE IF NOT EXISTS
temp_table ( INDEX(col_2) )
ENGINE=MyISAM
AS (
SELECT col_1, coll_2, coll_3
FROM mytable
)
It also works with PRIMARY KEY
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Resolve build errors due to circular dependency amongst classes
...knows about upfront - pointers and references, for example, will always be 32 or 64 bits (depending on the architecture) and so if you replaced (either one) by a pointer or reference, things would be great. Let's say we replace in A:
// file: A.h
class A {
// both these are fine, so are various c...
How do I get a UTC Timestamp in JavaScript?
...// two hours less than my local time
> Math.floor(d1.getTime()/ 1000)
1332049834
> var d2 = new Date( d1.getUTCFullYear(), d1.getUTCMonth(), d1.getUTCDate(), d1.getUTCHours(), d1.getUTCMinutes(), d1.getUTCSeconds() );
> d2.toUTCString();
"Sun, 18 Mar 2012 03:50:34 GMT" // four hours less ...
What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...
answered Mar 4 '12 at 6:32
Nicol BolasNicol Bolas
354k4747 gold badges595595 silver badges784784 bronze badges
...
HTML5 Canvas Resize (Downscale) Image High Quality?
...h);
var tByteBuffer = imgRes.data;
// convert float32 array into a UInt8Clamped Array
var pxIndex = 0; //
for (sIndex = 0, tIndex = 0; pxIndex < tw * th; sIndex += 3, tIndex += 4, pxIndex++) {
tByteBuffer[tIndex] = Math.ceil(tBuffer[sIndex]);
tByteBuffer[tIndex +...