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CAP theorem - Availability and Partition Tolerance

...stency. Consider if you have two nodes, X and Y, in a master-master setup. Now, there is a break between network communication between X and Y, so they can't sync updates. At this point you can either: A) Allow the nodes to get out of sync (giving up consistency), or B) Consider the cluster to be ...
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How can I check if the current date/time is past a set date/time?

...r, if you are using UTC dates (as you should), prefer to use new DateTime("now", new DateTimeZone('UTC')). This will prevent your app from misunderstandable bugs in dates. i advise you to store it in a function static variable, a class static or somewhere else in your running process... ...
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std::function and std::bind: what are they, and when should they be used?

I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup says about them in the C++11 FAQ . ...
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iOS (iPhone, iPad, iPodTouch) view real-time console log terminal

... This button has been retired in xCode 9.3. It now has a "Console.app" button, which makes way more sense. – rustyMagnet Apr 9 '18 at 15:22 ...
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How is “int main(){(([](){})());}” valid C++?

...hem, so that's what the first pair of parens around the lambda does. We're now at ([](){}). Then, () after the first wrapping parens calls the (empty) lambda. We're now at ([](){})() The whole expression is wrapped in parens again and we get (([](){})()). At last, ; ends the statement. We arrive ...
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Maintain model of scope when changing between views in AngularJS

...oreunload and $rootScope.$broadcast('saveState'); to let all the services know that they should save their state, and $rootScope.$broadcast('restoreState') to let them know to restore their state ( used for when the user leaves the page and presses the back button to return to the page respectively)...
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Can CSS detect the number of children an element has?

...the number of siblings they have. Original answer: Incredibly, this is now possible purely in CSS3. /* one item */ li:first-child:nth-last-child(1) { /* -or- li:only-child { */ width: 100%; } /* two items */ li:first-child:nth-last-child(2), li:first-child:nth-last-child(2) ~ li { widt...
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Handle Guzzle exception and get HTTP body

...ception for both (it's their superclass) Code to handle such errors thus now looks something like this: $client = new GuzzleHttp\Client; try { $client->get('http://google.com/nosuchpage'); } catch (GuzzleHttp\Exception\ClientException $e) { $response = $e->getResponse(); $re...
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What is a “slug” in Django?

...odels what is called a "slug". I am not quite sure what this is, but I do know it has something to do with URLs. How and when is this slug-thing supposed to be used? ...
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NPM/Bower/Composer - differences?

...be basic package information and dependencies. And yes, they are needed. Now, what about the READMEs? :-) https://github.com/bower/bower https://www.npmjs.org/doc/cli/npm.html https://getcomposer.org/doc/00-intro.md [update, four years later] bower is deprecated, and should not be used anymo...