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NSOperation vs Grand Central Dispatch

...work "into the background" with very little additional work) use GCD ref: https://cocoacasts.com/choosing-between-nsoperation-and-grand-central-dispatch/ http://iosinfopot.blogspot.in/2015/08/nsthread-vs-gcd-vs-nsoperationqueue.html http://nshipster.com/nsoperation/ ...
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How to get VM arguments from inside of Java application?

...ething there to help you. The sun website has a bunch on the technology: http://java.sun.com/javase/6/docs/technotes/guides/management/mxbeans.html share | improve this answer | ...
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How to call a Python function from Node.js

...%j', results); }); For the full documentation and source code, check out https://github.com/extrabacon/python-shell share | improve this answer | follow | ...
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?

...table, so in your bar table you must have a unique (name) index. See also http://www.postgresql.org/docs/9.1/static/ddl-constraints.html#DDL-CONSTRAINTS-FK and specifically: Finally, we should mention that a foreign key must reference columns that either are a primary key or form a unique con...
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How to do date/time comparison

...intf("Lifespan is %+v", diff) The program outputs: Lifespan is 3h0m0s http://play.golang.org/p/bbxeTtd4L6 share | improve this answer | follow | ...
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How to dump a dict to a json file?

...retty-print json file. The tricks print >> f, j is found from here: http://www.anthonydebarros.com/2012/03/11/generate-json-from-sql-using-python/ share | improve this answer | ...
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Objective-C: difference between id and void *

...s solve this -- Blocks are closures for C. They are available in Clang -- http://llvm.org/ and are pervasive in Snow Leopard (http://developer.apple.com/library/ios/documentation/Performance/Reference/GCD_libdispatch_Ref/GCD_libdispatch_Ref.pdf). ...
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Is there a way to word-wrap long words in a div?

... use of word-wrap for IE, designed to break unbroken strings). /* Source: http://snipplr.com/view/10979/css-cross-browser-word-wrap */ .wordwrap { white-space: pre-wrap; /* CSS3 */ white-space: -moz-pre-wrap; /* Firefox */ white-space: -pre-wrap; /* Opera <7 */ wh...
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How can I remove the gloss on a select element in Safari on Mac?

...nd; You have to write -webkit-appearance:none; in your css. read this http://trentwalton.com/2010/07/14/css-webkit-appearance/ share | improve this answer | follow ...
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Should I use encodeURI or encodeURIComponent for encoding URLs?

...ring with symbols & characters that have special meaning?"; var uri = 'http://example.com/foo?hello=' + encodeURIComponent(world); share | improve this answer | follow ...