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Multiple Type Constraints in Swift

...se a where clause which lets you specify as many requirements as you want (all of which must be fulfilled) separated by commas Swift 2: func someFunc<T where T:SomeProtocol, T:SomeOtherProtocol>(arg: T) { // stuff } Swift 3 & 4: func someFunc<T: SomeProtocol & SomeOtherProt...
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Guava: Why is there no Lists.filter() function?

...er could be implemented as returning a new materialised list, which is actually what I would expect from a filter method for lists as opposed to the one on Iterable. – Felix Leipold May 27 '15 at 22:27 ...
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What does !important mean in CSS?

... It means, essentially, what it says; that 'this is important, ignore subsequent rules, and any usual specificity issues, apply this rule!' In normal use a rule defined in an external stylesheet is overruled by a style defined in the head of ...
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What does “not run” mean in R help pages?

... It's not just time-consuming code that typically is put inside of a \dontrun{}. Code that requires user input needs to be be inside dontrun as well or else it won't pass R CMD check – Dason Oct 11 '12 at 23:03 ...
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Float vs Decimal in ActiveRecord

...r that is how the IEEE specification defines floats in binary format. Basically, it stores sign, fraction and exponent to represent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly. Th...
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How do I browse an old revision of a Subversion repository through the web view?

... Be careful with that: this is not officially supported and can change anytime with a new release. Even though it has been the same since the very beginnings of svn... – Stefan Mar 16 '09 at 18:01 ...
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PHP: merge two arrays while keeping keys instead of reindexing?

...operator is not an addition, it's a union. If the keys don't overlap then all is good, but if they do... – GordonM May 3 '12 at 15:46 3 ...
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How do you plot bar charts in gnuplot?

...plications it's more convenient to use the histogram plotting style, especially for grouping and stacking values. – Christoph Feb 1 '15 at 14:18 ...
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When to use references vs. pointers

...going in undefined-behaviour-land; the reference attribute version doesn't allow (without easy to spot tricks) the problem with 1. the reference attribute version is simpler to understand for the user: you have to provide a valid object, not something that could be null. If the behaviour of the fun...
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My pull request has been merged, what to do next?

...tories you contribute to'. It is easier to: delete your fix branch (actually, it is now deleted for you) on your fork (and in your local cloned repo: see "Delete a Git branch both locally and remotely") git pull upstream master (if master was the branch in which your fix has been integrated: the ...