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CSS hexadecimal RGBA?

...d not a finalised document).If things have heavily changed, please leave a comment letting me know so I can update this answer! § 4.2. The RGB hexadecimal notations: #RRGGBB The syntax of a <hex-color> is a <hash-token> token whose value consists of 3, 4, 6, or 8 hexadecimal di...
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Can't update Macports (with Mac OS X Mavericks)

... Install the "Command Line Tools" first: sudo xcode-select --install (Explicitly agreeing to the license is sometimes necessary via "sudo xcodebuild -license") Then upgrade the ports: sudo port -v selfupdate ...
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Install an apk file from command prompt?

I want to install a file using the Windows command line. First I want to build after compiling all the .jar files to create an .apk file for an Android application without using Eclipse. ...
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Center a DIV horizontally and vertically [duplicate]

... here if it is useful to anyone. You can see it here working: http://jsbin.com/iquviq/30/edit .content { width: 200px; height: 600px; background-color: blue; position: absolute; /*Can also be `fixed`*/ left: 0; right: 0; top: 0; bottom:...
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Version of SQLite used in Android?

...e3 --version UPDATE: Since SDK 29 (emulator revision 8), the adb shell command gives: /system/bin/sh: sqlite3: inaccessible or not found Any ideas why? Issue tracker here. SQLite 3.28.0 (window functions!): 30-11.0-R (Revision 7 in SDK Manager) SQLite 3.22.0: 29-10.0-Q (Revision 8 in SDK Man...
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Why does the is operator return false when given null?

...be implicitly assuming that a type is a set of values, and that assignment compatibility of a value y with a variable of type X is nothing more nor less than checking whether y is a member of set x. Though that is an extremely common way of looking at types, that is not the only way of looking at ...
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CSS Cell Margin

...t in case someone was copy/pasting the border-collapse technique the above comment, it should be border-collapse: separate (there was a typo in the spelling of separate above) – Tony DiNitto May 15 '16 at 21:35 ...
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Sort NSArray of date strings or objects

...yUsingSelector: or -[NSMutableArray sortUsingSelector:] and pass @selector(compare:) as the parameter. The -[NSDate compare:] method will order dates in ascending order for you. This is simpler than creating an NSSortDescriptor, and much simpler than writing your own comparison function. (NSDate obj...
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Anything wrong with NOT signing a .NET assembly?

...that this contributes to your colleague's desire to sign everything -- the compiler is demanding it. EDIT Since writing this answer you can see both the pro and against camp have roughly equivalent support. There clearly isn't a right answer here. The point that compelled this edit though is tha...
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What is the difference between Numpy's array() and asarray() functions?

...type=int, copy=False, subok=True) will copy both, because the dtype is not compatible. Most of the other functions are thin wrappers around array that control when copying happens: asarray: The input will be returned uncopied iff it's a compatible ndarray (copy=False). asanyarray: The input will...