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How to calculate time in hours between two dates in iOS

... @Abizern: Thanks, I wasn't considering those cases when I answered the question. I've linked to the answer by ÐąrέÐέvil – Akusete Feb 10 '13 at 22:25 ...
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Write bytes to file

... you are adding data to a file using a loop, a BinaryWriter object can provide better performance because you only have to open and close the file once.' I'm using a loop. I use the example from @0A0D and changed 'FileMode.Create' to 'FileMode.Append'. – John Doe ...
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How to make graphics with transparent background in R using ggplot2?

..., y = y, color = group), fill = "transparent" # for the inside of the boxplot ) Fastest way is using using rect, as all the rectangle elements inherit from rect: p <- p + theme( rect = element_rect(fill = "transparent") # all rectangles ) p More control...
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How can I tell if my server is serving GZipped content?

...ld impress one thing on my younger devs, its the importance of having a solid unix foundation. +1 for CURL. Its confusing at first, a life saver when you know it. – Akron Apr 12 '19 at 17:43 ...
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Multiple Type Constraints in Swift

...protocol composition should be preferable method: the solution above is valid, but, imho, unnecessarily clutters the function signature. Also, using protocol composition as, e.g., a type constraint, still lets you use the where clause for additional type/other usage, e.g. func someFunc<U, T: prot...
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Should struct definitions go in .h or .c file?

...t through any other .c files or not, it's whether the struct should be considered public (and so, accessible) or not. – c00kiemon5ter Jun 11 '11 at 16:21 ...
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Regular expression to match any character being repeated more than 10 times

...gex; print "YES" if "========================" =~ $regex; Here the \1 is called a backreference. It references what is captured by the dot . between the brackets (.) and then the {9,} asks for nine or more of the same character. Thus this matches ten or more of any single character. Although the...
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Best practice to validate null and empty collection in Java

... evaluate the right operand. So if m == null, then m.isEmpty() will not be called (not needed, the result is true). – icza Jul 29 '16 at 9:05 ...
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GraphViz - How to connect subgraphs?

...ying to represent a dependency diagram. I need to be able to have nodes inside a container and to be able to make nodes and/or containers dependent on other nodes and/or containers. ...
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What are the differences between segment trees, interval trees, binary indexed trees and range trees

... var channelOptions = { tags: "".split(" "), id: "1" }; initTagRenderer("".split(" "), "".split(" "), channelOptions); StackExchange.using("externalEditor", function() { // Have to fire editor after snippets, if snippets enabled...