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How many spaces will Java String.trim() remove?

... Based on the Java docs here, the .trim() replaces '\u0020' which is commonly known as whitespace. But take note, the '\u00A0' (Unicode NO-BREAK SPACE   ) is also seen as a whitespace, and .trim() will NOT remove th...
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What is a “Stub”?

...me shortcut which makes them not suitable for production (an in memory database is a good example). Stubs provide canned answers to calls made during the test, usually not responding at all to anything outside what's programmed in for the test. Stubs may also record information about calls, such a...
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Unable to show a Git tree in terminal

...ty=oneline --abbrev-commit | tig // Masi needed this The article text-based graph from Git-ready contains other options: git log --graph --pretty=oneline --abbrev-commit Regarding the article you mention, I would go with Pod's answer: ad-hoc hand-made output. Jakub Narębski mentions in...
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Determining type of an object in ruby

...rmally type checking is not done in Ruby, but instead objects are assessed based on their ability to respond to particular methods, commonly called "Duck typing". In other words, if it responds to the methods you want, there's no reason to be particular about the type. For example, object.is_a?(Str...
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How to change time in DateTime?

...on-ready. Its ZonedDateTime type is made "aware" by linking it to a tz database entry. share | improve this answer | follow | ...
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Check for installed packages before running install.packages() [duplicate]

...1) system.file does not look in all .libPath() locations, and (2) my conda based R installation alters the .libPaths in some way. – Aditya Apr 11 '19 at 14:55 ...
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What is the difference between a port and a socket?

...te HTTP server) TCP 192.168.1.3:63240 54.252.94.236:80 SYN_SENT TCP 192.168.1.3:63241 54.252.94.236:80 SYN_SENT TCP 192.168.1.3:63242 207.38.110.62:80 SYN_SENT TCP 192.168.1.3:63243 207.38.110.62:80 SYN_SENT TCP 192.168.1.3:64161 ...
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Rename a class in Xcode: Refactor… is grayed out (disabled). Why?

...ctor was disabled because the Xcode project I had opened was referencing a Base SDK that was missing. Edit Project Settings and in the Build tab set the Base SDK to one that you have (like for me this was iOS 4.2). This enabled Refactor for me. ...
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What is a Manifest in Scala and when do you need it?

...tail. One common use of Manifests is to have your code behave differently based on the static type of a collection. For example, what if you wanted to treat a List[String] differently from other types of a List: def foo[T](x: List[T])(implicit m: Manifest[T]) = { if (m <:< manifest[Str...
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How to check if type of a variable is string?

... In Python 2.x, you would do isinstance(s, basestring) basestring is the abstract superclass of str and unicode. It can be used to test whether an object is an instance of str or unicode. In Python 3.x, the correct test is isinstance(s, str) The bytes class is...