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Performance of foreach, array_map with lambda and array_map with static function

...a bit slower than using the named function. Now, comparing the array loop vs array_map calls, everything in the array loop is interpreted inline, without any call to a function, meaning no context to push/pop, just a JMP at the end of the loop, which likely explains the big difference. ...
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Error-Handling in Swift-Language

...xceptions are follows: Syntax is a bit different: do-catch + try + defer vs traditional try-catch-finally syntax. Exception handling usually incurs much higher execution time in exception path than in success path. This is not the case with Swift 2.0 errors, where success path and error path cost ...
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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?

...ctice because they both are event message based: See my answer to RabbitMQ vs Akka. If you're going to code only for the JVM then Akka is probably a good choice. Otherwise I would use RabbitMQ. Also if you're a Scala developer, then Akka should be a no-brainer. However Akka's Java bindings are not...
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Is cout synchronized/thread-safe?

...hat that information is for the most recent version of MSVC (currently for VS 2010/MSVC 10/cl.exe 16.x). You can select the information for older versions of MSVC using a dropdown control on the page (and the information is different for older versions). ...
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What is the difference between “INNER JOIN” and “OUTER JOIN”?

...laining the difference of putting additional conditions in the JOIN clause vs the WHERE clause. Kudos to you, Martin Smith. – Old Pro Dec 20 '14 at 4:48 23 ...
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Loop through an array in JavaScript

...perties. I would recommend you to read the following article: Enumeration VS Iteration share | improve this answer | follow | ...
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SQLAlchemy: What's the difference between flush() and commit()?

...ow the original question actually wanted to know about the impact of flush vs. commit for memory purposes. As the ability to persist or not is something the database offers (I think), simply flushing should be sufficient to offload to the database - although committing shouldn't hurt (actually proba...
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Is std::vector so much slower than plain arrays?

... community wiki 12 revs, 2 users 99%Loki Astari 48 ...
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Why not use tables for layout in HTML? [closed]

...Is a table less maintainable? I think using a table is easier than using divs and css. The majority of professional web developers seem to oppose you[citation needed]. That tables are in fact less maintainable should be obvious. Using tables for layout means that changing the corporate layout will...
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What is the difference between compile and link function in angularjs

... Best explanation on compile vs link. – Nexus23 Jan 19 '15 at 16:30 1 ...