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Moving and vanishing lines of code; trouble with Eclipse's XML Editor

... This bug is (finally) fixed in ADT 21. The fix is now available in ADT 21 Preview 9, posted a few minutes ago, here: https://android-review.googlesource.com/#/c/44936/1 The reason you get weird visual artifacts is that if a file contains br...
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Speed up the loop operation in R

...Biggest problem and root of ineffectiveness is indexing data.frame, I mean all this lines where you use temp[,]. Try to avoid this as much as possible. I took your function, change indexing and here version_A dayloop2_A <- function(temp){ res <- numeric(nrow(temp)) for (i in 1:nrow(te...
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NPM clean modules

Is there a way to get npm to unbuild all the modules under node_modules? Something like npm rebuild that removes all build artifacts but doesn't rebuild them? ...
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Will iOS launch my app into the background if it was force-quit by the user?

... Unlike the application:didReceiveRemoteNotification: method, which is called only when your app is running in the foreground, the system calls this method when your app is running in the foreground or background. In addition, if you enabled the remote notifications background mode, the sys...
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Is mathematics necessary for programming? [closed]

...m high school or fresh year college math, no more no less, and that almost all of programming tasks can be achieved without even need for advanced math. He argued, however, that algorithms are fundamental & must-have asset for programmers. ...
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Differences between git pull origin master & git pull origin/master

... checked-out branch. git pull origin/master will pull changes from the locally stored branch origin/master and merge that to the local checked-out branch. The origin/master branch is essentially a "cached copy" of what was last pulled from origin, which is why it's called a remote branch in git par...
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Something like 'contains any' for Java set?

... Actually it will short-circuit as soon as it finds the first common element – Xipo Dec 15 '16 at 10:54 3 ...
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How to change column order in a table using sql query in sql server 2005?

...er when you make a "SELECT *". I'm a developer and do this kind of queries all the time. You can spare some time with a good pre-defined column order. From any other standpoint, of course, it has no sense: nothing should depend on the column order. By the way, there is an ORDINAL_POSITION column qhe...
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Getting started with Haskell

...'ve done this by reading tutorials and watching screencasts, but nothing really seems to stick. Now, in learning various imperative/OO languages (like C, Java, PHP), exercises have been a good way for me to go. But since I don't really know what Haskell is capable of and because there are many new c...
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Android studio logcat nothing to show

I installed Android Studio yesterday, and I tried to use the LogCat to see the logs. But there is nothing to show in the logcat. I used the terminal to run ./adb logcat and it works. ...