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What does an underscore in front of an import statement mean?

...river{}) Once it's registered in this way, sqlite3 can be used with the standard library's sql interface in your code like in the example: db, err := sql.Open("sqlite3", "./foo.db") share | improv...
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How to load an ImageView by URL in Android? [closed]

... This is awesome. And should be much higher on the list. The asynctask allows this to load without freezing up the UI! – Kyle Clegg Jun 3 '12 at 5:26 3 ...
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Hidden features of Ruby

... From Ruby 1.9 Proc#=== is an alias to Proc#call, which means Proc objects can be used in case statements like so: def multiple_of(factor) Proc.new{|product| product.modulo(factor).zero?} end case number when multiple_of(3) puts "Multiple of 3" when multiple...
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What is “Orthogonality”?

...gn, operations do not have side effects; each action (whether it's an API call, a macro invocation, or a language operation) changes just one thing without affecting others. There is one and only one way to change each property of whatever system you are controlling. ...
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How to initialize an array's length in JavaScript?

... Why do you want to initialize the length? Theoretically there is no need for this. It can even result in confusing behavior, because all tests that use the length to find out whether an array is empty or not will report that the array is not empty. Some tests show that settin...
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How to avoid warning when introducing NAs by coercion

... answered Feb 20 '13 at 16:38 AndrieAndrie 157k3636 gold badges403403 silver badges464464 bronze badges ...
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how to get an uri of an image resource in android

... The format is: "android.resource://[package]/[res id]" [package] is your package name [res id] is value of the resource ID, e.g. R.drawable.sample_1 to stitch it together, use Uri path = Uri.parse("android.resource://your.package.name/"...
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How do I run a Java program from the command line on Windows?

...ent directory is the default classpath, so you don't have to set -cp . manually. – Artur Czajka Nov 6 '16 at 0:51 2 ...
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What's the difference between libev and libevent?

... each of these, by not using global variables but using a loop context for all functions, by using small watchers for each event type (an I/O watcher uses 56 bytes on x86_64 compared to 136 for libevent), allowing extra event types such as timers based on wallclock vs. monotonic time, inter-thread i...
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What is the difference between gravity and layout_gravity in Android?

... Basically, everything with layout_ defines something that effects the elements outside. – Triang3l Jun 28 '13 at 10:26 ...