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Call an activity method from a fragment

...g the android frame and it will not be able to recognize it. see also : https://stackoverflow.com/a/12014834/1984636 https://stackoverflow.com/a/2042829/1984636 share | improve this answer ...
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File Upload without Form

...); }); } }; }]); .Hidden { display: none } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div data-ng-controller="ng...
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JavaScriptSerializer - JSON serialization of enum as string

...ob.), and I didn't want to register it globally like @Iggy. So I combined https://stackoverflow.com/a/2870420/237091 and @Iggy's https://stackoverflow.com/a/18152942/237091 to allow setting up the string enum converter on during the SerializeObject command itself: Newtonsoft.Json.JsonConvert.Seria...
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What does @@variable mean in Ruby?

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Flatten an Array of Arrays in Swift

... Swift 4.x This usage of flatMap isn't deprecated and it's make for this. https://developer.apple.com/documentation/swift/sequence/2905332-flatmap var aofa = [[1,2,3],[4],[5,6,7,8,9]] aofa.flatMap { $0 } //[1,2,3,4,5,6,7,8,9] ...
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NumPy or Pandas: Keeping array type as integer while having a NaN value

... This capability has been added to pandas (beginning with version 0.24): https://pandas.pydata.org/pandas-docs/version/0.24/whatsnew/v0.24.0.html#optional-integer-na-support At this point, it requires the use of extension dtype Int64 (capitalized), rather than the default dtype int64 (lowercase)....
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Foreign Key to multiple tables

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How to compile for Windows on Linux with gcc/g++?

... From: https://fedoraproject.org/wiki/MinGW/Tutorial As of Fedora 17 it is possible to easily build (cross-compile) binaries for the win32 and win64 targets. This is realized using the mingw-w64 toolchain: http://mingw-w64.sf.ne...
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Good Java graph algorithm library? [closed]

.... Currently dormant, but provides implementations for many algorithms. See https://issues.apache.org/jira/browse/SANDBOX-458 for a list of implemented algorithms, also compared with Jung, GraphT, Prefuse, jBPT share ...
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Change one value based on another value in pandas

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