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Javascript reduce on array of objects
...: 2 }, { age: 8 }]
.reduce((total, thing) => total + thing.age, 0);
Now we're giving a starting value to the aggregator. The starting value should be the type that you expect the aggregator to be (the type you expect to come out as the final value), in the vast majority of cases.
While you ar...
What do
...it as a proof that A is String--the argument itself isn't important, only knowing that it exists. [edit: well, technically it actually is important because it represents an implicit conversion from A to String, which is what allows you to call a.length and not have the compiler yell at you]
Now I c...
Eclipse error: 'Failed to create the Java Virtual Machine'
... any other text-editor application, Find the line -Xmx256m (or -Xmx1024m). Now change the default value 256m (or 1024m) to 512m. You also need to give the exact java installed version (1.6 or 1.7 or other).
Like This:
-Xmx512m
-Dosgi.requiredJavaVersion=1.6
OR
-Xmx512m
-Dosgi.requiredJavaVers...
Play audio from a stream using C#
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The NAudio library is now shipping with an example application called Mp3StreamingDemo which should provide everything one will need to live stream an MP3 from the network.
– Martin
Nov 19 '13 at 7:35
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How to copy Java Collections list
...a deep copy, the List, via either mechanism, would have to have intricate knowledge of the underlying type. In the case of Strings, which are immutable in Java (and .NET for that matter), you don't even need a deep copy. In the case of MySpecialObject, you need to know how to make a deep copy of it ...
Add a reference column migration in Rails 4
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Now, if you use the special generator syntax for migrations, Rails 4.2 will automatically create the correct migration with foreign key constraints included. rails g migration AddUserToUploads user:references produces add_ref...
Facebook Architecture [closed]
... design decisions for what they do etc. Main underpinning being to learn. Knowing about sites which handles such massive traffic gives lots of pointers for architects etc. to keep in mind certain stuff while designing new sites. I am sharing what I found.
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How to convert current date into string in java?
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FYI, these troublesome classes are now legacy, supplanted by the java.time classes. See Oracle Tutorial.
– Basil Bourque
Aug 18 '17 at 15:46
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Using SQL Server 2008 and SQL Server 2005 and date time
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I voted this down by mistake, undid that, but now can't do what I really wanted to do which is vote it up! Thank you for finding the issue. If I understand correctly, does the value change from 2005 to 2008 due to updating the model from the database, where the database ...
Indentation in Go: tabs or spaces?
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EDIT 2: he original answer at the bottom is now incorrect. The correct section of the linked source file (current 30/12/2019) is:
Gofmt formats Go programs.
It uses tabs for indentation and blanks for alignment.
Alignment assumes that an editor is using a fixed...