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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio

...ow you to pool connections at the database level using PGBouncer. https://www.lewagon.com/blog/how-to-migrate-heroku-postgres-database-to-amazon-rds UPDATE: Heroku responded to my open ticket and stated that my database was improperly load balanced in their network. They said that improvements t...
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Disable/turn off inherited CSS3 transitions

...owser compatible way of disabling the transition. Here is a link: https://www.w3schools.com/cssref/css3_pr_transition.asp share | improve this answer | follow ...
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Tools for JPEG optimization? [closed]

...has tons of command line options, its free and have a nice license. http://www.imagemagick.org There seems to be an option called Strip that may help you: http://www.imagemagick.org/script/command-line-options.php#strip
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Apply CSS styles to an element depending on its child elements

...e hell not". A well fleshed out one by Shaun Inman is pretty good: http://www.shauninman.com/archive/2008/05/05/css_qualified_selectors share | improve this answer | follow ...
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Base64 encoding in SQL Server 2005 T-SQL

...e is no native function, this method has worked for me in the past: http://www.motobit.com/help/scptutl/sa306.htm so has this method: http://www.vbforums.com/showthread.php?t=554886 share | improve ...
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What does value & 0xff do in Java?

... From http://www.coderanch.com/t/236675/java-programmer-SCJP/certification/xff The hex literal 0xFF is an equal int(255). Java represents int as 32 bits. It look like this in binary: 00000000 00000000 00000000 11111111 When you do a b...
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How to sort with lambda in Python

...ined without a name, this post seems to explain it pretty nicely. https://www.programiz.com/python-programming/anonymous-function Lambda functions are nice for calling in-line because they only have one expression which is evaluated and returned. They syntax for a lambda is: lambda arguments: exp...
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How do I use CSS in Django?

...ATICFILES_DIRS = ( # Put strings here, like "/home/html/static" or "C:/www/django/static". # Always use forward slashes, even on Windows. # Don't forget to use absolute paths, not relative paths. os.path.join(os.path.dirname(__file__),'media').replace('\\','/'), ) This then picked ...
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Can an array be top-level JSON-text?

... yes, try it out here. http://www.jsonlint.com/ and put in [{}] share | improve this answer | follow | ...
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Getting URL hash location, and using it in jQuery

...o address the security implications noted in @CMS's answer. // example 1: www.example.com/index.html#foo // load correct subpage from URL hash if it exists $(window).on('load', function () { var hash = window.location.hash; if (hash) { hash = hash.replace('#',''); // strip the # at...