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Calculate difference between two datetimes in MySQL
...rence between the last login time and the current time (which I get using NOW() ).
3 Answers
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Xcode 6 - How to pick signing certificate/provisioning profile for Ad-Hoc distribution?
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I wish I had learned 3 hours earlier that xcodebuild can now also export to ipa format! I wasted that much time trying to get xcrun to embed a given provisioning profile, but it just won't work on Xcode 6. xcodebuild does! Thank you.
– Oscar Hierro
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Generating random whole numbers in JavaScript in a specific range?
... have an interval like this:
[0 .................................... 1)
Now, we'd like a number between min (inclusive) and max (exclusive):
[0 .................................... 1)
[min .................................. max)
We can use the Math.random to get the correspondent in the [min, ...
What is the preferred syntax for defining enums in JavaScript?
...avaScript#Versions) it's applicable to Firefox 4, IE 9, Opera 11.60 and I know it works in Chrome.
– Artur Czajka
Mar 15 '12 at 11:05
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Using Java 8's Optional with Stream::flatMap
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I don't think the api can change until Java 9 now.
– assylias
Mar 29 '14 at 11:42
5
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How to make a promise from setTimeout
...ions for resolving/rejecting the promise as arguments.
First, since async now has a meaning in JavaScript (even though it's only a keyword in certain contexts), I'm going to use later as the name of the function to avoid confusion.
Basic Delay
Using native promises (or a faithful polyfill) it wou...
What exactly does Perl's “bless” do?
...h a class.
package MyClass;
my $object = { };
bless $object, "MyClass";
Now when you invoke a method on $object, Perl know which package to search for the method.
If the second argument is omitted, as in your example, the current package/class is used.
For the sake of clarity, your example migh...
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...
JavaScript Chart Library
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@Alastair: Raphael is now sponsored and developed by Sencha... or so they say :)
– Roy Tinker
Jul 15 '11 at 3:03
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How do you use “git --bare init” repository?
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useful if you want to know difference between bare and non-bare repos stackoverflow.com/questions/7861184/…
– Guille Acosta
Mar 7 '16 at 14:52
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