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What is an “unwrapped value” in Swift?
I'm learning Swift for iOS 8 / OSX 10.10 by following this tutorial , and the term " unwrapped value " is used several times, as in this paragraph (under Objects and Class ):
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Can linux cat command be used for writing text to file?
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Why do you need to invoke an anonymous function on the same line?
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“The page you are requesting cannot be served because of the extension configuration.” error message
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Search code inside a Github project
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Update January 2013: a brand new search has arrived!, based on elasticsearch.org:
A search for stat within the ruby repo will be expressed as stat repo:ruby/ruby, and will now just workTM.
(the repo name is not case sensitive: test repo:word...
实战做项目如何选择开源许可协议（一）-了解协议 - 开源 & Github - 清泛网...
...码就是违反了协议(多谢Sunny2038纠正)。目前用的多的是GPLV1，GPLV2。这两个什么区别看后面那张树形图。采用这个协议的开源软件有：Linux、 MySQL 。
LGPL，最初是Library GPL的缩写，后来改称作Lesser GPL。由于GPL太严格，限制了很多商...
How to add a border just on the top side of a UIView
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How can I remove a trailing newline?
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Try the method rstrip() (see doc Python 2 and Python 3)
>>> 'test string\n'.rstrip(...