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How do you test functions and closures for equality?

...as kind of devastating because I had been storing closures in an Array and now can't remove them with indexOf({$0 == closure} so I have to refactor. IMHO optimization shouldn't influence language design, so without a quick fix like the now deprecated @objc_block in matt's answer, I would argue that...
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Can someone explain this 'double negative' trick? [duplicate]

...e whether it's confusing or not. I personally find it highly intuitive to know what's "falsey" and what's "truthy" when cast to a Boolean. – Chris Jul 30 '13 at 3:15 ...
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In Docker, what's the difference between a container and an image? [duplicate]

...n srv sys tmp usr var root@abf181be4379:/# exit But, the container, now no longer running, has state and can be saved (committed) to an image. $ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS ...
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How to get the last day of the month?

...s **kwargs I wouldn't rely on that and do a series of separate operations: now + relative(months=+1) + relative(day=1) + relative(days=-1) which is unambiguous. – Alfe Sep 24 '19 at 10:07 ...
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How to find day of week in php in a specific timezone

... Europe/Stockholm to the users time-zone. $dateTime = new \DateTime( 'now', new \DateTimeZone('Europe/Stockholm') ); $day = $dateTime->format('N'); ISO-8601 numeric representation of the day of the week (added in PHP 5.1.0) 1 (for Monday) through 7 (for Sunday) http://php.net/ma...
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Static variables in JavaScript

...they can have properties. For instance, quoting the example given on the (now vanished) article Static variables in Javascript: function countMyself() { // Check to see if the counter has been initialized if ( typeof countMyself.counter == 'undefined' ) { // It has not... perform t...
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Accessing Session Using ASP.NET Web API

...n.GetString("keyname"); return Ok(sessionData); } you should now be able to hit: http://localhost:1234/api/session/set/thisissomedata and then going to this URL will pull it out: http://localhost:1234/api/session/get Plenty more info on accessing session data within dot net core ...
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Failed to allocate memory: 8

... amount of ram I had specified for the virtual machine, and it was 1024MB, now I have 512MB and it is ok, now I need to find how to improve this amount of ram, 512 is not so much, and the machine is a little bit laggy. share...
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How to “EXPIRE” the “HSET” child key in redis?

... this is why redis is such an awesome piece of software. they know where to keep it simple – tObi Jan 4 '19 at 21:25 add a comment  |  ...
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Function overloading by return type?

...nt join " ", localtime(); # printed "58 11 2 14 0 109 3 13 0" for me right now print scalar localtime(); # printed "Wed Jan 14 02:12:44 2009" for me right now. Every operator in Perl does something in scalar context and something in list context, and they may be different, as illustrated. (This i...