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What is the difference between concurrency and parallelism?

...h. See also this excellent explanation: haskell.org/haskellwiki/Parallelism_vs._Concurrency – jberryman Oct 7 '11 at 2:25 9 ...
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Get current time as formatted string in Go?

...4:05 MST 2006" userTimeString := "Fri Dec 6 13:05:05 CET 2019" t, _ := time.Parse(layout, userTimeString) fmt.Println("Server: ", t.Format(time.RFC850)) //Server: Friday, 06-Dec-19 13:05:05 CET mumbai, _ := time.LoadLocation("Asia/Kolkata") mumbaiTime := t.In(mumbai) f...
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What's the difference between HEAD^ and HEAD~ in Git?

...> [ qw/ I J / ], ); sub postorder { my($root,$hash) = @_; my @parents = @{ $parents{$root} || [] }; postorder($_, $hash) for @parents; return if $sha1{$root}; @parents = map "-p $sha1{$_}", @parents; chomp($sha1{$root} = `git commit-tree @parents -m "$root" $hash`); d...
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Mysql: Select rows from a table that are not in another

... all join conditions manually: SELECT a.* FROM tbl_1 a NATURAL LEFT JOIN tbl_2 b WHERE b.FirstName IS NULL share | improve this answer | ...
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How do I create a simple 'Hello World' module in Magento?

...les named as follows cd /path/to/store/app touch etc/modules/MyCompanyName_HelloWorld.xml <?xml version="1.0"?> <config> <modules> <MyCompanyName_HelloWorld> <active>true</active> <codePool>local</codePool> ...
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PHP Regex to get youtube video ID?

... Use parse_url() and parse_str(). (You can use regexes for just about anything, but they are very easy to make an error in, so if there are PHP functions specifically for what you are trying to accomplish, use those.) parse_url takes...
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What happens to a detached thread when main() exits?

...), and that's well-defined, as long as it touches neither (automatic|thread_local) variables of other threads nor static objects. This appears to be allowed to allow thread managers as static objects (note in [basic.start.term]/4 says as much, thanks to @dyp for the pointer). Problems arise when t...
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Is it possible to specify the schema when connecting to postgres with JDBC?

...also set the user's default schema to your desired schema: ALTER USER user_name SET search_path to 'schema' share | improve this answer | follow | ...
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Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari

...d ACW here: https://developer.xamarin.com/guides/cross-platform/application_fundamentals/building_cross_platform_applications/part_1_-_understanding_the_xamarin_mobile_platform/ Bindings are in terms of performance very very costly. Invoking a C++ method from Java adds a huge overhead in calling t...
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MongoDb query condition on comparing 2 fields

...SODate("2017-01-20T10:55:08.000Z").getTime() – leinaD_natipaC Oct 1 '19 at 10:28 add a comment  |  ...