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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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Convert floating point number to a certain precision, and then copy to string

I have a floating point number, say 135.12345678910 . I want to concatenate that value to a string, but only want 135.123456789 . With print, I can easily do this by doing something like: ...
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jQuery `.is(“:visible”)` not working in Chrome

...ume space and be visible. Elements with visibility: hidden or opacity: 0 are considered visible, since they still consume space in the layout. On the other hand, even if its visibility is set to hidden or the opacity is zero, it's still :visible to jQuery as it consumes space, which can be c...
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.gitignore all the .DS_Store files in every folder and subfolder

...ore from the current directory. You can use find . -name .DS_Store -print0 | xargs -0 git rm --ignore-unmatch to remove all .DS_Stores from the repository. Felt tip: Since you probably never want to include .DS_Store files, make a global rule. First, make a global .gitignore file somewhere, e....
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Improving bulk insert performance in Entity framework [duplicate]

I want to insert 20000 records in a table by entity framework and it takes about 2 min. Is there any way other than using SP to improve its performance. This is my code: ...
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How do you set your pythonpath in an already-created virtualenv?

... | edited Oct 17 '18 at 20:33 answered Jan 21 '11 at 11:39 ...
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Android studio logcat nothing to show

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Checking if an Android application is running in the background

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lose vim colorscheme in tmux mode

...verbose. – thameera Apr 16 '13 at 7:01 98 Personally I had to use set -g default-terminal "screen...
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How do you use version control with Access development?

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