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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
...un Docker build on various files which previously worked before, which are now no longer working.
14 Answers
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get UTC time in PHP
... DateTimeZone.
The DateTime __construct() documentation suggests passing "now" as the first parameter when creating a DateTime instance and specifying a timezone to get the current time.
$date_utc = new \DateTime("now", new \DateTimeZone("UTC"));
echo $date_utc->format(\DateTime::RFC850); # Sa...
How do I find a “gap” in running counter with SQL?
...rt into artificial_range( name ) select name from artificial_range;
-- you now have two rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have four rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have eight rows
--etc.
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How to get start and end of day in Javascript?
...0 * 60 * 24; // 24 hours in milliseconds
let startOfDay = Math.floor(Date.now() / interval) * interval;
let endOfDay = startOfDay + interval - 1; // 23:59:59:9999
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Timer function to provide time in nano seconds using C++
...e QueryPerformanceCounter. And here is more on QPC
Apparently there is a known issue with QPC on some chipsets, so you may want to make sure you do not have those chipset. Additionally some dual core AMDs may also cause a problem. See the second post by sebbbi, where he states:
QueryPerformance...
How to see an HTML page on Github as a normal rendered HTML page to see preview in browser, without
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@Denis: Which browser and which URL are you using? For now, it supports only Webkit and Gecko browsers.
– niutech
Sep 3 '12 at 18:43
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IntelliJ: Viewing diff of all changed files between local and a git commit/branch
... answered Apr 4 '18 at 4:17
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What does Expression.Quote() do that Expression.Constant() can’t already do?
... is a factory for adders that are bound to the outer lambda's parameter.
Now, suppose we wish to represent this as an expression tree that will later be compiled and executed. What should the body of the expression tree be? It depends on whether you want the compiled state to return a delegate or ...
How to send a message to a particular client with socket.io
I'm starting with socket.io + node.js, I know how to send a message locally and to broadcast socket.broadcast.emit() function:- all the connected clients receive the same message.
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why does DateTime.ToString(“dd/MM/yyyy”) give me dd-MM-yyyy?
... Escaping the format string using backslash does also work: DateTime.Now.ToString("dd\\/MM\\/yyyy");
– TomB
Jan 30 '15 at 8:42
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