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Select random lines from a file
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Does it eventually yield the same line more than once?
– Frederick Nord
Mar 27 '18 at 20:21
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ScalaTest in sbt: is there a way to run a single test without tags?
...active mode:
testOnly *MySuite -- -z foo
to run only the tests whose name includes the substring "foo".
For exact match rather than substring, use -t instead of -z.
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Give examples of functions which demonstrate covariance and contravariance in the cases of both over
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Covariance:
class Super {
Object getSomething(){}
}
class Sub extends Super {
String getSomething() {}
}
Sub#getSomething is covariant because it returns a subclass of the return type of Super#getSomething (but fullfills the contract of Super.getSomething())
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Show space, tab, CRLF characters in editor of Visual Studio
...t since Visual Studio 2010, the current one being Visual Studio 2019 (at time of writing). In Visual Studio 2013, you can also use CTRL+E, S or CTRL+E, CTRL+S.
By default, end of line markers are not visualized. This functionality is provided by the End of the Line extension.
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Pipe subprocess standard output to a variable [duplicate]
...okens as I've done below, or the alternative is to pass the shell=True argument but this fires up a fully-blown shell which can be dangerous if you don't control the contents of the command string.
>>> proc = subprocess.Popen(['cdrecord', '--help'], stderr=subprocess.PIPE)
>>> out...
Smooth GPS data
...ery second and displaying current position on a map. The problem is that sometimes (specially when accuracy is low) the values vary a lot, making the current position to "jump" between distant points in the map.
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Page redirect after certain time PHP
There is a certain PHP function for redirecting after some time. I saw it somewhere but can't remember. It's like the gmail redirection after logging in. Please, could anyone remind me?
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Why does git revert complain about a missing -m option?
...ct with other people, and there's multiple github forks being worked on. Someone just made a fix for a problem and I merged with his fork, but then I realized that I could find a better solution. I want to revert the commit I just made. I tried doing this with git revert HEAD but it gave me this e...
Manually put files to Android emulator SD card
...at a phone, clicking this will allow you to choose a file to move to phone memory.
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How to get the width and height of an android.widget.ImageView?
I have an image view with some default height and width, images are stored in db and I want to scale Image according to Imageview height width. As I don't want it give default values because when ever I change it's height and width I also have to change it in code.
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