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Understanding the Event Loop
...code is running in tick 1
fs.readFile("/home/barney/colors.txt", function (error, data) {
//The code inside this callback function will absolutely NOT run in tick 1
//It will run in some tick >= 2
});
//This code will absolutely also run in tick 1
//HOWEVER, typically there's not much else to...
What's the difference between a temp table and table variable in SQL Server?
...(ORDER BY (SELECT 0))) % 20
FROM sys.all_columns
END TRY
BEGIN CATCH
PRINT ERROR_MESSAGE()
END CATCH
BEGIN TRAN Update10Rows
SAVE TRAN Update10Rows
COMMIT
UPDATE $(tablename)
SET InRowFiller = LOWER(InRowFiller),
OffRowFiller =LOWER(OffRowFiller),
LOBFiller =LOWER(LOBFiller)
BEGIN TRAN...
What is the fastest integer division supporting division by zero no matter what the result is?
... it should work).
This is the fastest possible approach if divide by zero errors are extremely rare: you only pay for the divisions by zero, not for the valid divisions, the normal execution path is not changed at all.
However, the OS will be involved in every exception that's ignored, which is ex...
What does “fragment” mean in ANTLR?
... is a terminal node.
// You can't name it 'rule0', or you will get syntax errors:
// 'A-C' came as a complete surprise to me while matching alternative
// 'DEF' came as a complete surprise to me while matching alternative
Case3: ( is equivalent to Case2, making it more readable than Case2)
RU...
Can I list-initialize a vector of move-only type?
...nst auto v1 = std::vector< UX >{ UX{}, UX{}, UX{} }; // !! Error !!
}
See it live on Coliru.
Perhaps someone can leverage std::make_array()'s trickery to allow make_vector() to do its thing directly, but I did not see how (more accurately, I tried what I thought should work, faile...
Byte order mark screws up file reading in Java
...e> to use system default encoding.
* @throws IOException If an I/O error occurs.
*/
public UnicodeReader(InputStream in, String defaultEncoding) throws IOException {
byte bom[] = new byte[BOM_SIZE];
String encoding;
int unread;
PushbackInputStream pus...
Creating a singleton in Python
...
@PaulKenjora You must have an error in your code. If you define a global variable in a module, when you access it from another module it should have the value.
– warvariuc
Mar 30 '17 at 19:40
...
REST vs JSON-RPC? [closed]
...ne of code.
Last but not least, using HTTP as an RPC protocol is a huge error according to the designer of HTTP 1.1 (and inventor of REST): http://www.ics.uci.edu/~fielding/pubs/dissertation/evaluation.htm#sec_6_5_2
shar...
How do cache lines work?
... render the CPU worthless (defect) so large L1, L2, L3 caches increase the error rate which decreases the yield which directly decreases ROI. So there is a huge trade off when it comes to available cache size.
(currently one creates more L1, L2, L3 caches in order to be able to deactivate certain p...
How do you calculate the average of a set of circular data? [closed]
...good ones, but still off by 1 or 2 ulps) so the more you average, the more errors you include.
– Matthieu
Mar 17 '16 at 10:46
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