Stack Overflow Weekly Newsletter - Tuesday, December 30, 2014

Top new questions this week: Why does this random value have a 25/75 distribution instead of 50/50? Edit: So basically what I'm trying to write is a 1 bit hash for double. I want to map a double to true or false with a 50/50 chance. For that I wrote code that picks some random numbers (just as an ... java random double bit-manipulation probability   asked by Susei 74 votes answered by harold 97 votes Explain the syntax of Collections.<String>emptyList() I just studied about generic programming, the List<E> interface, and ArrayList, so I can understand the statement below. ArrayList<String> list = new ArrayList<String>(); But I ... java generics collections   asked by Jenix 37 votes answered by fgb 30 votes What is the ::content pseudo-element and how does it work? This is impossible to Google for because every article talking about the :before and :after pseudo-elements seems to use the word 'content'. I heard about it in this CSS-Tricks article, explaining ... html css html5 web-component shadow-dom   asked by jon 30 votes answered by TylerH 31 votes What is happening when I compose * with + in Haskell? I'm trying to understand the result of (*) . (+) in Haskell. I know that the composition operator is just the standard composition of mathematical functions- so (f . g) = f(g x) But: (*) . ... haskell function-composition   asked by user2666425 27 votes answered by Aadit M Shah 42 votes So many parentheses in gcc standard headers Why are constant expressions in GCC header files surrounded by parentheses, like this? #define INTMAX_MIN (-9223372036854775807LL) #define INTMAX_MAX (9223372036854775807LL) What would be the ... c gcc macros   asked by robschia 26 votes answered by ganbustein 56 votes Java variable scope in if statement I received a compilation error for the following code: if(true) int a = 10; else int b = 20; If I change it to the following code, then there is no compilation error: if(true) { int a ... java   asked by Orup 25 votes answered by Sunil Patel 13 votes Why there is no BooleanConsumer in Java 8? I'm afraid that is this somewhat a silly question. Is there anybody can tell me why there is no BooleanConsumer opposite to BooleanSupplier? Is there any reason other than "because simply there ... java function java-8   asked by Jin Kwon 19 votes answered by pbabcdefp 10 votes Greatest hits from previous weeks: For-each over an array in JavaScript? I have an array of a varying number of objects. At a certain point, I want to do something to all the objects in that array. How do I do this with JavaScript? I thought of something like this: ... javascript arrays foreach   asked by Dante1986 1240 votes answered by T.J. Crowder 2535 votes Remove specific element from an array? I have an array of integers, which I'm using the .push() method to add to. Is there a simple way to remove a specific element from an array? The equivalent of something like array.remove(int); I ... javascript arrays   asked by Walker 1103 votes answered by Tom Wadley 1915 votes Can you answer these? What would be an example usage of DebuggerStepperBoundaryAttribute? I'm familiar with the DebuggerHiddenAttribute and the DebuggerStepThroughAttribute. Today I noticed the DebuggerStepperBoundaryAttribute, and if I understand it correctly, if you attempt to F10 over ... c# visual-studio-debugging   asked by Daryl 9 votes ocean latitude longitude point distance from shore I started a "free" open-sourced project to create a new data set for pH of the earth oceans. I started from the open data-set from NOAA and created a 2.45 millions rows data-set with those columns: ... r google-maps geolocation latitude-longitude   asked by Simon Filiatrault 5 votes line breaks and justification inside a ggplot legend label I am trying to have line breaks (automatic or forced) justify the text (left or both left and right) have greek letters and percentage signs inside a gglot legend label. I have experimented with ... r ggplot2   asked by PatrickT 4 votes

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