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How can I check if a string represents an int, without using try/except?

...o only use it for error trapping and reporting. I was going to gripe that PHP, perl, ruby, C, and even the freaking shell have simple functions for testing a string for integer-hood, but due diligence in verifying those assumptions tripped me up! Apparently this lack is a common sickness. Here'...
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Best way to select random rows PostgreSQL

... of depez outlining several more approaches: http://www.depesz.com/index.php/2007/09/16/my-thoughts-on-getting-random-row/ 1 "large" as in "the complete table will not fit into the memory". share | ...
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Entity Attribute Value Database vs. strict Relational Model Ecommerce

... Joomla (regular relational structure): https://forum.virtuemart.net/index.php?topic=58686.0 It seems, that Magento's EAV performance is a real showstopper. That's why I'm leaning towards a normalized structure. To overcome the lack of flexibility I'm thinking about adding some separate data dicti...
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Can an AngularJS controller inherit from another controller in the same module?

... inherit calling $controller(): app.controller('ParentCtrl', function(etc...) { this.foo = 'bar'; }); app.controller('ChildCtrl', function($scope, $controller, etc...) { var ctrl = $controller('ParentCtrl as parent', {etc: etc, ...}); angular.extend(this, ctrl); ...
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Spring Boot application as a Service

...al /var/log directory by default. You just need to symlink your jar into /etc/init.d like so sudo link -s /var/myapp/myapp.jar /etc/init.d/myapp OR sudo ln -s ~/myproject/build/libs/myapp-1.0.jar /etc/init.d/myapp_servicename After that you can do the usual /etc/init.d/myapp start Then set...
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Setting PATH environment variable in OSX permanently

... You have to add it to /etc/paths. Reference (which works for me) : Here share | improve this answer | follow ...
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Is there a REAL performance difference between INT and VARCHAR primary keys?

...dex)) ENGINE=InnoDB; Then, I filled 10 million rows in each table with a PHP script whose essence is like this: $pdo = get_pdo(); $keys = [ 'alabam', 'massac', 'newyor', 'newham', 'delawa', 'califo', 'nevada', 'texas_', 'florid', 'ohio__' ]; for ($k = 0; $k < 10; $k++) { for ($j = 0; $j ...
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ES6 class variable alternatives

...ilar to the pattern of having $ at the beginning of variables that so many PHP programmers are used to. Just that little implication that "yeah, it's not the same exact thing...but look...it's still a variable because that is a way variables are done in some languages!" helps. –...
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Is it possible to force Excel recognize UTF-8 CSV files automatically?

... that's solved my issue too , in php it looks like this: $utf8_with_bom = chr(239) . chr(187) . chr(191) . $csvText; – Abdullah Dec 31 '13 at 7:09 ...
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Amazon S3 direct file upload from client browser - private key disclosure

... issue at GitHub please take a look on this Thanks. github.com/aws/aws-sdk-php/issues/1332 – usama Jul 18 '17 at 20:48  |  show 3 more comment...