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Is JavaScript guaranteed to be single-threaded?
... @J-P: Personally I don't want to know straight away because it means I have to be careful that my code is re-entrant, that calling my blur code won't affect state that some outer code is relying on. There are too many cases where blurring is an unexpected side-effect to necessarily catch...
What is the order of precedence for CSS?
... @jared I swapped the two first points. Is it this what you mean ?
– Lorenz Meyer
Aug 3 '14 at 15:10
Ye...
What is this date format? 2011-08-12T20:17:46.384Z
...
The T is just a literal to separate the date from the time, and the Z means "zero hour offset" also known as "Zulu time" (UTC). If your strings always have a "Z" you can use:
SimpleDateFormat format = new SimpleDateFormat(
"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
format.setTimeZone(Time...
Use C++ with Cocoa Instead of Objective-C?
... controls at all, and the Qt library does all of the drawing itself. This means that Qt apps don't get any hardware acceleration for 2D rendering, they don't stay in sync with UI changes that Apple makes to the standard controls, and a Qt app can't deliver ADA compliance or scriptability unless you...
Is it possible to specify condition in Count()?
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Depends what you mean, but the other interpretation of the meaning is where you want to count rows with a certain value, but don't want to restrict the SELECT to JUST those rows...
You'd do it using SUM() with a clause in, like this instead ...
Get the _id of inserted document in Mongo database in NodeJS
...{
console.log(docsInserted);
});
and check the console to see what I mean.
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HTTP response code for POST when resource already exists
... @Wrikken That is no longer correct. HTTP 400 was changed in RFC 7231 to mean "the server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing)." I'm not saying ...
In MySQL queries, why use join instead of where?
... link the results from table "A" to table "B". The traditional (ANSI-89) means of doing this is to:
List the tables involved in a comma separated list in the FROM clause
Write the association between the tables in the WHERE clause
SELECT *
FROM TABLE_A a,
TABLE_B b
WHERE a.id = b.id
...
Create boolean column in MySQL with false as default value?
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You have to specify 0 (meaning false) or 1 (meaning true) as the default. Here is an example:
create table mytable (
mybool boolean not null default 0
);
FYI: boolean is an alias for tinyint(1).
Here is the proof:
mysql> create table m...
What do column flags mean in MySQL Workbench?
...Tab” and MySQL CREATE TABLE documentation for additional details.
That means hover over an acronym in the mySql Workbench table editor.
Section 8.1.11.2, “The Columns Tab”
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