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What does $_ mean in PowerShell?
...he current value in the pipe line, which is called $PSItem in Powershell 3 and newer.
1,2,3 | %{ write-host $_ }
or
1,2,3 | %{ write-host $PSItem }
For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will contain the current value...
Find a Git branch containing changes to a given file
...file in one of them, but I'm not sure which one. Is there some kind of command I can run to find which branches contain changes to a certain file?
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Controlling number of decimal digits in print output in R
...te a print function that ignored the options value. The built-in printing and formatting functions do use the options value as a default.
As to the second question, since R uses finite precision arithmetic, your answers aren't accurate beyond 15 or 16 decimal places, so in general, more aren't req...
Is there any way to git checkout previous branch?
... sort of want the equivalent of cd - for git. If I am in branch master and I checkout foo , I would love to be able to type something like git checkout - to go back to master , and be able to type it again to return to foo .
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Capturing TAB key in text box [closed]
...call the preventDefault() method on the event object passed to your event handler. In IE, you have to return false from the event handle. The JQuery library provides a preventDefault method on its event object that works in IE and FF.
<body>
<input type="text" id="myInput">
<script t...
Using ViewPagerIndicator library with Android Studio and Gradle
...cator library , but I'm unable to get it working with my Gradle project in Android Studio.
19 Answers
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getting the screen density programmatically in android?
How to get the screen density programmatically in android?
19 Answers
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How to merge lists into a list of tuples?
...d I create [(1,5), (1,6), (1,7), (1,8), (2,5), (2,6) ,so on] using zip command?
– Mona Jalal
May 30 '16 at 4:39
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What is the best open-source java charting library? (other than jfreechart) [closed]
...he only successful opensource project in this area seems to be jfreechart, and it doesn't even have any documentation or examples available.
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What is the difference between a URI, a URL and a URN?
People talk about URL s, URI s, and URN s as if they're different things, but they look the same to the naked eye.
31 An...