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Scala @ operator
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It enables one to bind a matched pattern to a variable. Consider the following, for instance:
val o: Option[Int] = Some(2)
You can easily extract the content:
o match {
case Some(x) => println(x)
case None =>
}
But ...
How do I start PowerShell from Windows Explorer?
...re a way to start PowerShell in a specific folder from Windows Explorer, e.g. to right-click in a folder and have an option like "Open PowerShell in this Folder"?
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How can I do test setup using the testing package in Go
...th Go 1.4 you can implement setup/teardown (no need to copy your functions before/after each test). The documentation is outlined here in the Main section:
TestMain runs in the main goroutine and can do whatever setup and
teardown is necessary around a call to m.Run. It should then call
os.E...
How do I get the path of the current executed file in Python?
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You can't directly determine the location of the main script being executed. After all, sometimes the script didn't come from a file at all. For example, it could come from the interactive interpreter or dynamically generated code stored only in memory.
However, you can reliably determi...
Git: How to return from 'detached HEAD' state
If one would checkout a branch:
4 Answers
4
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iOS 6: How do I restrict some views to portrait and allow others to rotate?
...ree views restricted to portrait orientation and only the last view should be allowed to rotate to landscape. When returning from the fourth view to the third and the fourth view was in landscape orientation I want everything to rotate back to portrait.
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How to concatenate two IEnumerable into a new IEnumerable?
I have two instances of IEnumerable<T> (with the same T ). I want a new instance of IEnumerable<T> which is the concatenation of both.
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Purpose of Trigraph sequences in C++?
According to C++'03 Standard 2.3/1:
9 Answers
9
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How can I catch a “catchable fatal error” on PHP type hinting?
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Update: This is not a catchable fatal error anymore in php 7. Instead an "exception" is thrown. An "exception" (in scare quotes) that is not derived from Exception but Error; it's still a Throwable and can be handled with a normal try-catch block. see h...
Placeholder in IE9
It seems it's a very well known problem but all the solutions I found on Google don't work on my newly downloaded IE9.
11 A...