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What's the _ underscore representative of in Swift References?

...e designers think it's obviously enough for your code and doesn't enchance readability, quite the contrary, it soils the code. So you get the warning. The reference has the opposite goal: it has to be as clear as it's possible - so the first parameter's underscore is mentioned for EVERY method. That...
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getExtractedText on inactive InputConnection warning on android

...ipped 30 frames! The application may be doing too much work on its main thread. My situation: I have an EditText view the user types into. The EditText gets cleared when user presses a button. Lots of inactive InputConnection entries stream out when I rapidly press the button. Ex: editText.set...
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Difference between Service, Async Task & Thread?

What is the difference between Service, Async Task & Thread. If i am not wrong all of them are used to do some stuff in background. So, how to decide which to use and when? ...
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How do I toggle an ng-show in AngularJS based on a boolean?

... Boolean in the controller. The weird thing is that this default value was read correctly by the ng-show on page load, but then after clicking on ng-click it would update only this ng-show, and not others in the page (all watching the same Boolean—at least in theory)... – ant...
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What's the difference between Unicode and UTF-8? [duplicate]

... as well as we should. If you feel you belong to this group, you should read this ultra short introduction to character sets and encodings. Actually, comparing UTF-8 and Unicode is like comparing apples and oranges: UTF-8 is an encoding - Unicode is a character set A character ...
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How to permanently export a variable in Linux?

...lue of your environment variable. #!/bin/bash echo "Enter variable name: " read variable_name echo "Enter variable value: " read variable_value echo "adding " $variable_name " to environment variables: " $variable_value echo "export "$variable_name"="$variable_value>>~/.bashrc echo $variable_n...
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What does Maven do, in theory and in practice? When is it worth to use it? [closed]

I am about to start a Java project just for practice. I've read about Maven, but I don't actually understand when it is meant to be used. ...
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Why are elementwise additions much faster in separate loops than in a combined loop?

... For anyone interested, here is good reading on memory alignment and here are several links on the way data is cached in memory – New Alexandria Dec 19 '11 at 4:24 ...
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How does a Linux/Unix Bash script know its own PID?

...SHPID | cat - 11656 31528 $ echo $$ $BASHPID 11656 11656 $ echo $$ | while read line; do echo $line $$ $BASHPID; done 11656 11656 31497 $ while read line; do echo $line $$ $BASHPID; done <<< $$ 11656 11656 11656 sh...
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Change R default library path using .libPaths in Rprofile.site fails to work

... if you want to add a library why not append the new library (which must already exist in your filesystem) to the existing library path? .libPaths( c( .libPaths(), "~/userLibrary") ) Or (and this will make the userLibrary the first place to put new packages): .libPaths( c( "~/userLibrary" , .li...